74892872 has 16 divisors (see below), whose sum is σ = 142727100. Its totient is φ = 36832320.

The previous prime is 74892863. The next prime is 74892887. The reversal of 74892872 is 27829847.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74891716 + 1156 = 8654^2 + 34^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76247 + ... + 77222.

Almost surely, 2^74892872 is an apocalyptic number.

It is an amenable number.

74892872 is a deficient number, since it is larger than the sum of its proper divisors (67834228).

74892872 is a wasteful number, since it uses less digits than its factorization.

74892872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153536 (or 153532 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The square root of 74892872 is about 8654.0667896660. The cubic root of 74892872 is about 421.5154475196.

The spelling of 74892872 in words is "seventy-four million, eight hundred ninety-two thousand, eight hundred seventy-two".