72928286 has 16 divisors (see below), whose sum is σ = 110983824. Its totient is φ = 35937024.

The previous prime is 72928277. The next prime is 72928313. The reversal of 72928286 is 68282927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56201 + ... + 57483.

It is an arithmetic number, because the mean of its divisors is an integer number (6936489).

Almost surely, 2^72928286 is an apocalyptic number.

72928286 is a deficient number, since it is larger than the sum of its proper divisors (38055538).

72928286 is a wasteful number, since it uses less digits than its factorization.

72928286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675.

The product of its digits is 193536, while the sum is 44.

The square root of 72928286 is about 8539.8059696928. The cubic root of 72928286 is about 417.7970176607.

The spelling of 72928286 in words is "seventy-two million, nine hundred twenty-eight thousand, two hundred eighty-six".