220582379 has 2 divisors, whose sum is σ = 220582380. Its totient is φ = 220582378.

The previous prime is 220582321. The next prime is 220582387. The reversal of 220582379 is 973285022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220582379 is a prime.

It is not a weakly prime, because it can be changed into another prime (220582399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110291189 + 110291190.

It is an arithmetic number, because the mean of its divisors is an integer number (110291190).

Almost surely, 2^220582379 is an apocalyptic number.

220582379 is a deficient number, since it is larger than the sum of its proper divisors (1).

220582379 is an equidigital number, since it uses as much as digits as its factorization.

220582379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 220582379 is about 14852.0159911037. The cubic root of 220582379 is about 604.2132879399.

The spelling of 220582379 in words is "two hundred twenty million, five hundred eighty-two thousand, three hundred seventy-nine".