222798887 has 2 divisors, whose sum is σ = 222798888. Its totient is φ = 222798886.

The previous prime is 222798871. The next prime is 222798949. The reversal of 222798887 is 788897222.

It is a happy number.

222798887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222798887 - 2⁴ = 222798871 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222798817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111399443 + 111399444.

It is an arithmetic number, because the mean of its divisors is an integer number (111399444).

Almost surely, 2^222798887 is an apocalyptic number.

222798887 is a deficient number, since it is larger than the sum of its proper divisors (1).

222798887 is an equidigital number, since it uses as much as digits as its factorization.

222798887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1806336, while the sum is 53.

The square root of 222798887 is about 14926.4492428709. The cubic root of 222798887 is about 606.2303464490.

The spelling of 222798887 in words is "two hundred twenty-two million, seven hundred ninety-eight thousand, eight hundred eighty-seven".