222404879 has 2 divisors, whose sum is σ = 222404880. Its totient is φ = 222404878.

The previous prime is 222404867. The next prime is 222404887. The reversal of 222404879 is 978404222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222404879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222404179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111202439 + 111202440.

It is an arithmetic number, because the mean of its divisors is an integer number (111202440).

Almost surely, 2^222404879 is an apocalyptic number.

222404879 is a deficient number, since it is larger than the sum of its proper divisors (1).

222404879 is an equidigital number, since it uses as much as digits as its factorization.

222404879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 222404879 is about 14913.2450861642. The cubic root of 222404879 is about 605.8727735252.

The spelling of 222404879 in words is "two hundred twenty-two million, four hundred four thousand, eight hundred seventy-nine".