74678672 has 10 divisors (see below), whose sum is σ = 144689958. Its totient is φ = 37339328.

The previous prime is 74678641. The next prime is 74678699. The reversal of 74678672 is 27687647.

It can be written as a sum of positive squares in only one way, i.e., 42823936 + 31854736 = 6544^2 + 5644^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2333693 + ... + 2333724.

Almost surely, 2^74678672 is an apocalyptic number.

It is an amenable number.

74678672 is a deficient number, since it is larger than the sum of its proper divisors (70011286).

74678672 is a wasteful number, since it uses less digits than its factorization.

74678672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667425 (or 4667419 counting only the distinct ones).

The product of its digits is 790272, while the sum is 47.

The square root of 74678672 is about 8641.6822436375. The cubic root of 74678672 is about 421.1132070874.

Subtracting from 74678672 its reverse (27687647), we obtain a square (46991025 = 6855²).

The spelling of 74678672 in words is "seventy-four million, six hundred seventy-eight thousand, six hundred seventy-two".