222456887 has 4 divisors (see below), whose sum is σ = 223322736. Its totient is φ = 221591040.

The previous prime is 222456881. The next prime is 222456907. The reversal of 222456887 is 788654222.

222456887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222456887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222456881) 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, 432539 + ... + 433052.

It is an arithmetic number, because the mean of its divisors is an integer number (55830684).

Almost surely, 2^222456887 is an apocalyptic number.

222456887 is a deficient number, since it is larger than the sum of its proper divisors (865849).

222456887 is an equidigital number, since it uses as much as digits as its factorization.

222456887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865848.

The product of its digits is 430080, while the sum is 44.

The square root of 222456887 is about 14914.9886691207. The cubic root of 222456887 is about 605.9199963731.

The spelling of 222456887 in words is "two hundred twenty-two million, four hundred fifty-six thousand, eight hundred eighty-seven".