74987456 has 28 divisors (see below), whose sum is σ = 152829768. Its totient is φ = 36479232.

The previous prime is 74987453. The next prime is 74987461. The reversal of 74987456 is 65478947.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74987453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13466 + ... + 18201.

It is an arithmetic number, because the mean of its divisors is an integer number (5458206).

Almost surely, 2^74987456 is an apocalyptic number.

It is an amenable number.

74987456 is an abundant number, since it is smaller than the sum of its proper divisors (77842312).

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

74987456 is a wasteful number, since it uses less digits than its factorization.

74987456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31716 (or 31706 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 74987456 is about 8659.5297793818. The cubic root of 74987456 is about 421.6928201859.

The spelling of 74987456 in words is "seventy-four million, nine hundred eighty-seven thousand, four hundred fifty-six".