72089790 has 32 divisors (see below), whose sum is σ = 173287296. Its totient is φ = 19193760.

The previous prime is 72089761. The next prime is 72089813. The reversal of 72089790 is 9798027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22849 + ... + 25811.

It is an arithmetic number, because the mean of its divisors is an integer number (5415228).

Almost surely, 2^72089790 is an apocalyptic number.

72089790 is an abundant number, since it is smaller than the sum of its proper divisors (101197506).

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

72089790 is a wasteful number, since it uses less digits than its factorization.

72089790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 72089790 is about 8490.5706522000. The cubic root of 72089790 is about 416.1896286295.

The spelling of 72089790 in words is "seventy-two million, eighty-nine thousand, seven hundred ninety".