22979497 has 4 divisors (see below), whose sum is σ = 23369040. Its totient is φ = 22589956.

The previous prime is 22979491. The next prime is 22979503. The reversal of 22979497 is 79497922.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (22979491) and next prime (22979503).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22979497 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22979497.

It is not an unprimeable number, because it can be changed into a prime (22979491) 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, 194683 + ... + 194800.

It is an arithmetic number, because the mean of its divisors is an integer number (5842260).

Almost surely, 2^22979497 is an apocalyptic number.

It is an amenable number.

22979497 is a deficient number, since it is larger than the sum of its proper divisors (389543).

22979497 is an equidigital number, since it uses as much as digits as its factorization.

22979497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389542.

The product of its digits is 571536, while the sum is 49.

The square root of 22979497 is about 4793.6934612050. The cubic root of 22979497 is about 284.3021687980.

The spelling of 22979497 in words is "twenty-two million, nine hundred seventy-nine thousand, four hundred ninety-seven".