34307681 has 4 divisors (see below), whose sum is σ = 34870164. Its totient is φ = 33745200.

The previous prime is 34307671. The next prime is 34307687. The reversal of 34307681 is 18670343.

34307681 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.

It can be written as a sum of positive squares in 2 ways, for example, as 16321600 + 17986081 = 4040^2 + 4241^2 .

It is not a de Polignac number, because 34307681 - 2¹⁴ = 34291297 is a prime.

It is a super-2 number, since 2×34307681² = 2354033951195522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34307687) 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, 281150 + ... + 281271.

It is an arithmetic number, because the mean of its divisors is an integer number (8717541).

Almost surely, 2^34307681 is an apocalyptic number.

It is an amenable number.

34307681 is a deficient number, since it is larger than the sum of its proper divisors (562483).

34307681 is an equidigital number, since it uses as much as digits as its factorization.

34307681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562482.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 34307681 is about 5857.2759026701. The cubic root of 34307681 is about 324.9354696338.

It can be divided in two parts, 3430 and 7681, that added together give a palindrome (11111).

The spelling of 34307681 in words is "thirty-four million, three hundred seven thousand, six hundred eighty-one".