73747972 has 24 divisors (see below), whose sum is σ = 138698784. Its totient is φ = 34184832.

The previous prime is 73747943. The next prime is 73748009. The reversal of 73747972 is 27974737.

It is a super-2 number, since 2×73747972² = 10877526748225568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3538 + ... + 12649.

It is an arithmetic number, because the mean of its divisors is an integer number (5779116).

Almost surely, 2^73747972 is an apocalyptic number.

It is an amenable number.

73747972 is a deficient number, since it is larger than the sum of its proper divisors (64950812).

73747972 is a wasteful number, since it uses less digits than its factorization.

73747972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16275 (or 16273 counting only the distinct ones).

The product of its digits is 518616, while the sum is 46.

The square root of 73747972 is about 8587.6639431221. The cubic root of 73747972 is about 419.3564823917.

The spelling of 73747972 in words is "seventy-three million, seven hundred forty-seven thousand, nine hundred seventy-two".