72996052 has 12 divisors (see below), whose sum is σ = 130153716. Its totient is φ = 35809280.

The previous prime is 72996037. The next prime is 72996059. The reversal of 72996052 is 25069927.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60279696 + 12716356 = 7764^2 + 3566^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72995996 and 72996014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72996059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171949 + ... + 172372.

It is an arithmetic number, because the mean of its divisors is an integer number (10846143).

Almost surely, 2^72996052 is an apocalyptic number.

It is an amenable number.

72996052 is a deficient number, since it is larger than the sum of its proper divisors (57157664).

72996052 is a wasteful number, since it uses less digits than its factorization.

72996052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344378 (or 344376 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 72996052 is about 8543.7727029691. The cubic root of 72996052 is about 417.9263852415.

The spelling of 72996052 in words is "seventy-two million, nine hundred ninety-six thousand, fifty-two".