22713497 has 2 divisors, whose sum is σ = 22713498. Its totient is φ = 22713496.

The previous prime is 22713491. The next prime is 22713499. The reversal of 22713497 is 79431722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21799561 + 913936 = 4669^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 22713497 - 2⁶ = 22713433 is a prime.

Together with 22713499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22713491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11356748 + 11356749.

It is an arithmetic number, because the mean of its divisors is an integer number (11356749).

Almost surely, 2^22713497 is an apocalyptic number.

It is an amenable number.

22713497 is a deficient number, since it is larger than the sum of its proper divisors (1).

22713497 is an equidigital number, since it uses as much as digits as its factorization.

22713497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 22713497 is about 4765.8679167598. The cubic root of 22713497 is about 283.2009252912.

The spelling of 22713497 in words is "twenty-two million, seven hundred thirteen thousand, four hundred ninety-seven".