220882979 has 2 divisors, whose sum is σ = 220882980. Its totient is φ = 220882978.

The previous prime is 220882969. The next prime is 220882993. The reversal of 220882979 is 979288022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220882979 - 2¹² = 220878883 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (220882969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110441489 + 110441490.

It is an arithmetic number, because the mean of its divisors is an integer number (110441490).

Almost surely, 2^220882979 is an apocalyptic number.

220882979 is a deficient number, since it is larger than the sum of its proper divisors (1).

220882979 is an equidigital number, since it uses as much as digits as its factorization.

220882979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 220882979 is about 14862.1323840154. The cubic root of 220882979 is about 604.4876284884.

The spelling of 220882979 in words is "two hundred twenty million, eight hundred eighty-two thousand, nine hundred seventy-nine".