72220827 has 16 divisors (see below), whose sum is σ = 111082752. Its totient is φ = 40882080.

The previous prime is 72220823. The next prime is 72220849. The reversal of 72220827 is 72802227.

It is not a de Polignac number, because 72220827 - 2² = 72220823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72220794 and 72220803.

It is not an unprimeable number, because it can be changed into a prime (72220823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13824 + ... + 18317.

It is an arithmetic number, because the mean of its divisors is an integer number (6942672).

Almost surely, 2^72220827 is an apocalyptic number.

72220827 is a deficient number, since it is larger than the sum of its proper divisors (38861925).

72220827 is a wasteful number, since it uses less digits than its factorization.

72220827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32258.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 72220827 is about 8498.2837679146. The cubic root of 72220827 is about 416.4416441153.

The spelling of 72220827 in words is "seventy-two million, two hundred twenty thousand, eight hundred twenty-seven".