72925992 has 24 divisors (see below), whose sum is σ = 197508090. Its totient is φ = 24308640.

The previous prime is 72925991. The next prime is 72926011. The reversal of 72925992 is 29952927.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49364676 + 23561316 = 7026^2 + 4854^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×72925992³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (72925991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 506359 + ... + 506502.

Almost surely, 2^72925992 is an apocalyptic number.

72925992 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

72925992 is an abundant number, since it is smaller than the sum of its proper divisors (124582098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72925992 is a wasteful number, since it uses less digits than its factorization.

72925992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012873 (or 1012866 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 72925992 is about 8539.6716564514. The cubic root of 72925992 is about 417.7926369352.

The spelling of 72925992 in words is "seventy-two million, nine hundred twenty-five thousand, nine hundred ninety-two".