23286457 has 4 divisors (see below), whose sum is σ = 24512080. Its totient is φ = 22060836.

The previous prime is 23286443. The next prime is 23286463. The reversal of 23286457 is 75468232.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23286457 is a prime.

It is a super-2 number, since 2×23286457² = 1084518159225698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23286427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612783 + ... + 612820.

It is an arithmetic number, because the mean of its divisors is an integer number (6128020).

Almost surely, 2^23286457 is an apocalyptic number.

It is an amenable number.

23286457 is a deficient number, since it is larger than the sum of its proper divisors (1225623).

23286457 is a wasteful number, since it uses less digits than its factorization.

23286457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225622.

The product of its digits is 80640, while the sum is 37.

The square root of 23286457 is about 4825.6043144875. The cubic root of 23286457 is about 285.5624759121.

The spelling of 23286457 in words is "twenty-three million, two hundred eighty-six thousand, four hundred fifty-seven".