72725990 has 8 divisors (see below), whose sum is σ = 130906800. Its totient is φ = 29090392.

The previous prime is 72725971. The next prime is 72726007. The reversal of 72725990 is 9952727.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 3636290 + ... + 3636309.

It is an arithmetic number, because the mean of its divisors is an integer number (16363350).

Almost surely, 2^72725990 is an apocalyptic number.

72725990 is a deficient number, since it is larger than the sum of its proper divisors (58180810).

72725990 is a wasteful number, since it uses less digits than its factorization.

72725990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7272606.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 72725990 is about 8527.9534473401. The cubic root of 72725990 is about 417.4103504308.

The spelling of 72725990 in words is "seventy-two million, seven hundred twenty-five thousand, nine hundred ninety".