22743497 has 12 divisors (see below), whose sum is σ = 26908560. Its totient is φ = 19161576.

The previous prime is 22743473. The next prime is 22743503. The reversal of 22743497 is 79434722.

It is not a de Polignac number, because 22743497 - 2²⁰ = 21694921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22743497.

It is not an unprimeable number, because it can be changed into a prime (22743407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1043 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (2242380).

Almost surely, 2^22743497 is an apocalyptic number.

It is an amenable number.

22743497 is a deficient number, since it is larger than the sum of its proper divisors (4165063).

22743497 is an equidigital number, since it uses as much as digits as its factorization.

22743497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7940 (or 7933 counting only the distinct ones).

The product of its digits is 84672, while the sum is 38.

The square root of 22743497 is about 4769.0142587331. The cubic root of 22743497 is about 283.3255544193.

The spelling of 22743497 in words is "twenty-two million, seven hundred forty-three thousand, four hundred ninety-seven".