72210956 has 12 divisors (see below), whose sum is σ = 127145592. Its totient is φ = 35883648.

The previous prime is 72210949. The next prime is 72210959. The reversal of 72210956 is 65901227.

It is not an unprimeable number, because it can be changed into a prime (72210959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54725 + ... + 56028.

It is an arithmetic number, because the mean of its divisors is an integer number (10595466).

Almost surely, 2^72210956 is an apocalyptic number.

It is an amenable number.

72210956 is a deficient number, since it is larger than the sum of its proper divisors (54934636).

72210956 is a wasteful number, since it uses less digits than its factorization.

72210956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110920 (or 110918 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 72210956 is about 8497.7029837480. The cubic root of 72210956 is about 416.4226704437.

The spelling of 72210956 in words is "seventy-two million, two hundred ten thousand, nine hundred fifty-six".