22115967 has 4 divisors (see below), whose sum is σ = 29487960. Its totient is φ = 14743976.

The previous prime is 22115959. The next prime is 22115983. The reversal of 22115967 is 76951122.

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

It is a cyclic number.

It is not a de Polignac number, because 22115967 - 2³ = 22115959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22115567) 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, 3685992 + ... + 3685997.

It is an arithmetic number, because the mean of its divisors is an integer number (7371990).

Almost surely, 2^22115967 is an apocalyptic number.

22115967 is a deficient number, since it is larger than the sum of its proper divisors (7371993).

22115967 is an equidigital number, since it uses as much as digits as its factorization.

22115967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7371992.

The product of its digits is 7560, while the sum is 33.

The square root of 22115967 is about 4702.7616354648. The cubic root of 22115967 is about 280.6954100501.

The spelling of 22115967 in words is "twenty-two million, one hundred fifteen thousand, nine hundred sixty-seven".