23281497 has 24 divisors (see below), whose sum is σ = 35852544. Its totient is φ = 14524224.

The previous prime is 23281493. The next prime is 23281499. The reversal of 23281497 is 79418232.

It is not a de Polignac number, because 23281497 - 2² = 23281493 is a prime.

It is a super-2 number, since 2×23281497² = 1084056205122018, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (23281493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8533 + ... + 10925.

It is an arithmetic number, because the mean of its divisors is an integer number (1493856).

Almost surely, 2^23281497 is an apocalyptic number.

It is an amenable number.

23281497 is a deficient number, since it is larger than the sum of its proper divisors (12571047).

23281497 is a wasteful number, since it uses less digits than its factorization.

23281497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469 (or 2466 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 23281497 is about 4825.0903618482. The cubic root of 23281497 is about 285.5421995993.

The spelling of 23281497 in words is "twenty-three million, two hundred eighty-one thousand, four hundred ninety-seven".