22496997 has 4 divisors (see below), whose sum is σ = 29996000. Its totient is φ = 14997996.

The previous prime is 22496993. The next prime is 22497017. The reversal of 22496997 is 79969422.

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.

It is not a de Polignac number, because 22496997 - 2² = 22496993 is a prime.

It is a super-2 number, since 2×22496997² = 1012229748036018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22496993) 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, 3749497 + ... + 3749502.

It is an arithmetic number, because the mean of its divisors is an integer number (7499000).

Almost surely, 2^22496997 is an apocalyptic number.

It is an amenable number.

22496997 is a deficient number, since it is larger than the sum of its proper divisors (7499003).

22496997 is an equidigital number, since it uses as much as digits as its factorization.

22496997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7499002.

The product of its digits is 489888, while the sum is 48.

The square root of 22496997 is about 4743.0999356961. The cubic root of 22496997 is about 282.2982484113.

It can be divided in two parts, 2 and 2496997, that multiplied together give a palindrome (4993994).

The spelling of 22496997 in words is "twenty-two million, four hundred ninety-six thousand, nine hundred ninety-seven".