74863816 has 16 divisors (see below), whose sum is σ = 141659100. Its totient is φ = 37088064.

The previous prime is 74863813. The next prime is 74863823. The reversal of 74863816 is 61836847.

It can be written as a sum of positive squares in 2 ways, for example, as 58461316 + 16402500 = 7646^2 + 4050^2 .

It is not an unprimeable number, because it can be changed into a prime (74863813) 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, 42055 + ... + 43798.

Almost surely, 2^74863816 is an apocalyptic number.

It is an amenable number.

74863816 is a deficient number, since it is larger than the sum of its proper divisors (66795284).

74863816 is a wasteful number, since it uses less digits than its factorization.

74863816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85968 (or 85964 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 74863816 is about 8652.3878784992. The cubic root of 74863816 is about 421.4609290376.

The spelling of 74863816 in words is "seventy-four million, eight hundred sixty-three thousand, eight hundred sixteen".