22366897 has 4 divisors (see below), whose sum is σ = 25562176. Its totient is φ = 19171620.

The previous prime is 22366891. The next prime is 22366913. The reversal of 22366897 is 79866322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79866322 = 2 ⋅39933161.

It is a cyclic number.

It is not a de Polignac number, because 22366897 - 2³ = 22366889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22366891) 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, 1597629 + ... + 1597642.

It is an arithmetic number, because the mean of its divisors is an integer number (6390544).

Almost surely, 2^22366897 is an apocalyptic number.

It is an amenable number.

22366897 is a deficient number, since it is larger than the sum of its proper divisors (3195279).

22366897 is an equidigital number, since it uses as much as digits as its factorization.

22366897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195278.

The product of its digits is 217728, while the sum is 43.

The square root of 22366897 is about 4729.3653908321. The cubic root of 22366897 is about 281.7530196740.

The spelling of 22366897 in words is "twenty-two million, three hundred sixty-six thousand, eight hundred ninety-seven".