72892725 has 12 divisors (see below), whose sum is σ = 120516096. Its totient is φ = 38876080.

The previous prime is 72892709. The next prime is 72892733. The reversal of 72892725 is 52729827.

It is a happy number.

It is not a de Polignac number, because 72892725 - 2⁴ = 72892709 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485877 + ... + 486026.

It is an arithmetic number, because the mean of its divisors is an integer number (10043008).

Almost surely, 2^72892725 is an apocalyptic number.

72892725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

72892725 is a deficient number, since it is larger than the sum of its proper divisors (47623371).

72892725 is a wasteful number, since it uses less digits than its factorization.

72892725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971916 (or 971911 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 72892725 is about 8537.7236427516. The cubic root of 72892725 is about 417.7290984482.

The spelling of 72892725 in words is "seventy-two million, eight hundred ninety-two thousand, seven hundred twenty-five".