72727996 has 12 divisors (see below), whose sum is σ = 138844440. Its totient is φ = 33058160.

The previous prime is 72727987. The next prime is 72728011. The reversal of 72727996 is 69972727.

It is a super-2 number, since 2×72727996² = 10578722804352032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826411 + ... + 826498.

It is an arithmetic number, because the mean of its divisors is an integer number (11570370).

Almost surely, 2^72727996 is an apocalyptic number.

It is an amenable number.

72727996 is a deficient number, since it is larger than the sum of its proper divisors (66116444).

72727996 is a wasteful number, since it uses less digits than its factorization.

72727996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652924 (or 1652922 counting only the distinct ones).

The product of its digits is 666792, while the sum is 49.

The square root of 72727996 is about 8528.0710597415. The cubic root of 72727996 is about 417.4141882035.

The spelling of 72727996 in words is "seventy-two million, seven hundred twenty-seven thousand, nine hundred ninety-six".