72976052 has 6 divisors (see below), whose sum is σ = 127708098. Its totient is φ = 36488024.

The previous prime is 72976051. The next prime is 72976061. The reversal of 72976052 is 25067927.

It can be written as a sum of positive squares in only one way, i.e., 68624656 + 4351396 = 8284^2 + 2086^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72975997 and 72976015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72976051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9122003 + ... + 9122010.

It is an arithmetic number, because the mean of its divisors is an integer number (21284683).

Almost surely, 2^72976052 is an apocalyptic number.

It is an amenable number.

72976052 is a deficient number, since it is larger than the sum of its proper divisors (54732046).

72976052 is a wasteful number, since it uses less digits than its factorization.

72976052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18244017 (or 18244015 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 72976052 is about 8542.6021796640. The cubic root of 72976052 is about 417.8882128976. Note that the first 3 decimals are identical.

The spelling of 72976052 in words is "seventy-two million, nine hundred seventy-six thousand, fifty-two".