22969819 has 2 divisors, whose sum is σ = 22969820. Its totient is φ = 22969818.

The previous prime is 22969813. The next prime is 22969823. The reversal of 22969819 is 91896922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22969819 - 2⁵ = 22969787 is a prime.

It is a super-2 number, since 2×22969819² = 1055225169785522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22969813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11484909 + 11484910.

It is an arithmetic number, because the mean of its divisors is an integer number (11484910).

Almost surely, 2^22969819 is an apocalyptic number.

22969819 is a deficient number, since it is larger than the sum of its proper divisors (1).

22969819 is an equidigital number, since it uses as much as digits as its factorization.

22969819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 46.

The square root of 22969819 is about 4792.6839036181. The cubic root of 22969819 is about 284.2622511452.

The spelling of 22969819 in words is "twenty-two million, nine hundred sixty-nine thousand, eight hundred nineteen".