74917929 has 16 divisors (see below), whose sum is σ = 107220672. Its totient is φ = 46361088.

The previous prime is 74917919. The next prime is 74917937. The reversal of 74917929 is 92971947.

It is a happy number.

It is not a de Polignac number, because 74917929 - 2¹¹ = 74915881 is a prime.

It is a super-2 number, since 2×74917929² = 11225392171298082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74917919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6339 + ... + 13784.

It is an arithmetic number, because the mean of its divisors is an integer number (6701292).

Almost surely, 2^74917929 is an apocalyptic number.

It is an amenable number.

74917929 is a deficient number, since it is larger than the sum of its proper divisors (32302743).

74917929 is a wasteful number, since it uses less digits than its factorization.

74917929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20216.

The product of its digits is 285768, while the sum is 48.

The square root of 74917929 is about 8655.5143694641. The cubic root of 74917929 is about 421.5624512579.

The spelling of 74917929 in words is "seventy-four million, nine hundred seventeen thousand, nine hundred twenty-nine".