74297688 has 32 divisors (see below), whose sum is σ = 186417600. Its totient is φ = 24676128.

The previous prime is 74297653. The next prime is 74297693. The reversal of 74297688 is 88679247.

It is a self number, because there is not a number n which added to its sum of digits gives 74297688.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1323 + ... + 12261.

It is an arithmetic number, because the mean of its divisors is an integer number (5825550).

Almost surely, 2^74297688 is an apocalyptic number.

It is an amenable number.

74297688 is an abundant number, since it is smaller than the sum of its proper divisors (112119912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74297688 is a wasteful number, since it uses less digits than its factorization.

74297688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11231 (or 11227 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 74297688 is about 8619.6106640613. The cubic root of 74297688 is about 420.3958625981.

The spelling of 74297688 in words is "seventy-four million, two hundred ninety-seven thousand, six hundred eighty-eight".