22498747 has 2 divisors, whose sum is σ = 22498748. Its totient is φ = 22498746.

The previous prime is 22498739. The next prime is 22498781. The reversal of 22498747 is 74789422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22498747 - 2³ = 22498739 is a prime.

It is not a weakly prime, because it can be changed into another prime (22408747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11249373 + 11249374.

It is an arithmetic number, because the mean of its divisors is an integer number (11249374).

Almost surely, 2^22498747 is an apocalyptic number.

22498747 is a deficient number, since it is larger than the sum of its proper divisors (1).

22498747 is an equidigital number, since it uses as much as digits as its factorization.

22498747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 43.

The square root of 22498747 is about 4743.2844106168. The cubic root of 22498747 is about 282.3055680419.

The spelling of 22498747 in words is "twenty-two million, four hundred ninety-eight thousand, seven hundred forty-seven".