220972827 has 4 divisors (see below), whose sum is σ = 294630440. Its totient is φ = 147315216.

The previous prime is 220972823. The next prime is 220972853. The reversal of 220972827 is 728279022.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 220972827 - 2² = 220972823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220972823) 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, 36828802 + ... + 36828807.

It is an arithmetic number, because the mean of its divisors is an integer number (73657610).

Almost surely, 2^220972827 is an apocalyptic number.

220972827 is a deficient number, since it is larger than the sum of its proper divisors (73657613).

220972827 is an equidigital number, since it uses as much as digits as its factorization.

220972827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73657612.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 220972827 is about 14865.1547923323. The cubic root of 220972827 is about 604.5695793359.

The spelling of 220972827 in words is "two hundred twenty million, nine hundred seventy-two thousand, eight hundred twenty-seven".