220792631 has 4 divisors (see below), whose sum is σ = 228406200. Its totient is φ = 213179064.

The previous prime is 220792619. The next prime is 220792639. The reversal of 220792631 is 136297022.

It is a happy number.

220792631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 220792631 - 2¹⁸ = 220530487 is a prime.

It is a super-2 number, since 2×220792631² = 97498771807804322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220792639) 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, 3806741 + ... + 3806798.

It is an arithmetic number, because the mean of its divisors is an integer number (57101550).

Almost surely, 2^220792631 is an apocalyptic number.

220792631 is a deficient number, since it is larger than the sum of its proper divisors (7613569).

220792631 is an equidigital number, since it uses as much as digits as its factorization.

220792631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7613568.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 220792631 is about 14859.0925362217. The cubic root of 220792631 is about 604.4051991760.

The spelling of 220792631 in words is "two hundred twenty million, seven hundred ninety-two thousand, six hundred thirty-one".