74990865 has 8 divisors (see below), whose sum is σ = 119985408. Its totient is φ = 39995120.

The previous prime is 74990863. The next prime is 74990873. The reversal of 74990865 is 56809947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74990865 - 2¹ = 74990863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74990863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2499681 + ... + 2499710.

It is an arithmetic number, because the mean of its divisors is an integer number (14998176).

Almost surely, 2^74990865 is an apocalyptic number.

It is an amenable number.

74990865 is a deficient number, since it is larger than the sum of its proper divisors (44994543).

74990865 is a wasteful number, since it uses less digits than its factorization.

74990865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999399.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 74990865 is about 8659.7266123129. The cubic root of 74990865 is about 421.6992102726.

It can be divided in two parts, 74990 and 865, that added together give a triangular number (75855 = T₃₈₉).

The spelling of 74990865 in words is "seventy-four million, nine hundred ninety thousand, eight hundred sixty-five".