34072981 has 4 divisors (see below), whose sum is σ = 36077292. Its totient is φ = 32068672.

The previous prime is 34072963. The next prime is 34072993. The reversal of 34072981 is 18927043.

34072981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18927043 = 467 ⋅40529.

It can be written as a sum of positive squares in 2 ways, for example, as 11662225 + 22410756 = 3415^2 + 4734^2 .

It is a cyclic number.

It is not a de Polignac number, because 34072981 - 2⁵ = 34072949 is a prime.

It is a super-2 number, since 2×34072981² = 2321936068452722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34072901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002130 + ... + 1002163.

It is an arithmetic number, because the mean of its divisors is an integer number (9019323).

Almost surely, 2^34072981 is an apocalyptic number.

It is an amenable number.

34072981 is a deficient number, since it is larger than the sum of its proper divisors (2004311).

34072981 is a wasteful number, since it uses less digits than its factorization.

34072981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004310.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 34072981 is about 5837.2066093295. The cubic root of 34072981 is about 324.1928087009.

It can be divided in two parts, 34072 and 981, that added together give a palindrome (35053).

The spelling of 34072981 in words is "thirty-four million, seventy-two thousand, nine hundred eighty-one".