220790569 has 4 divisors (see below), whose sum is σ = 220825540. Its totient is φ = 220755600.

The previous prime is 220790561. The next prime is 220790599. The reversal of 220790569 is 965097022.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 108430569 + 112360000 = 10413^2 + 10600^2 .

It is a cyclic number.

It is not a de Polignac number, because 220790569 - 2³ = 220790561 is a prime.

It is a super-2 number, since 2×220790569² = 97496950718687522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220790561) 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, 5082 + ... + 21619.

It is an arithmetic number, because the mean of its divisors is an integer number (55206385).

Almost surely, 2^220790569 is an apocalyptic number.

It is an amenable number.

220790569 is a deficient number, since it is larger than the sum of its proper divisors (34971).

220790569 is an equidigital number, since it uses as much as digits as its factorization.

220790569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34970.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 220790569 is about 14859.0231509342. The cubic root of 220790569 is about 604.4033176407.

The spelling of 220790569 in words is "two hundred twenty million, seven hundred ninety thousand, five hundred sixty-nine".