15733972 has 6 divisors (see below), whose sum is σ = 27534458. Its totient is φ = 7866984.

The previous prime is 15733961. The next prime is 15733973. The reversal of 15733972 is 27933751.

It can be written as a sum of positive squares in only one way, i.e., 15634116 + 99856 = 3954^2 + 316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15733973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1966743 + ... + 1966750.

Almost surely, 2^15733972 is an apocalyptic number.

It is an amenable number.

15733972 is a deficient number, since it is larger than the sum of its proper divisors (11800486).

15733972 is a wasteful number, since it uses less digits than its factorization.

15733972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933497 (or 3933495 counting only the distinct ones).

The product of its digits is 39690, while the sum is 37.

The square root of 15733972 is about 3966.6071143989. The cubic root of 15733972 is about 250.5798381113.

The spelling of 15733972 in words is "fifteen million, seven hundred thirty-three thousand, nine hundred seventy-two".