74035981 has 4 divisors (see below), whose sum is σ = 75757792. Its totient is φ = 72314172.

The previous prime is 74035979. The next prime is 74035991. The reversal of 74035981 is 18953047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74035981 - 2¹ = 74035979 is a prime.

It is a super-2 number, since 2×74035981² = 10962652965264722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74035981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74035921) 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, 860841 + ... + 860926.

It is an arithmetic number, because the mean of its divisors is an integer number (18939448).

Almost surely, 2^74035981 is an apocalyptic number.

It is an amenable number.

74035981 is a deficient number, since it is larger than the sum of its proper divisors (1721811).

74035981 is a wasteful number, since it uses less digits than its factorization.

74035981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721810.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 74035981 is about 8604.4163660297. The cubic root of 74035981 is about 419.9016795553.

The spelling of 74035981 in words is "seventy-four million, thirty-five thousand, nine hundred eighty-one".