72890528 has 24 divisors (see below), whose sum is σ = 143700480. Its totient is φ = 36395200.

The previous prime is 72890491. The next prime is 72890533. The reversal of 72890528 is 82509827.

It is a happy 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, 35843 + ... + 37821.

It is an arithmetic number, because the mean of its divisors is an integer number (5987520).

Almost surely, 2^72890528 is an apocalyptic number.

It is an amenable number.

72890528 is a deficient number, since it is larger than the sum of its proper divisors (70809952).

72890528 is a wasteful number, since it uses less digits than its factorization.

72890528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3140 (or 3132 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 72890528 is about 8537.5949775098. The cubic root of 72890528 is about 417.7249015956.

The spelling of 72890528 in words is "seventy-two million, eight hundred ninety thousand, five hundred twenty-eight".