23247457 has 4 divisors (see below), whose sum is σ = 24258240. Its totient is φ = 22236676.

The previous prime is 23247437. The next prime is 23247463. The reversal of 23247457 is 75474232.

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 not a de Polignac number, because 23247457 - 2²³ = 14858849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23247407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505357 + ... + 505402.

It is an arithmetic number, because the mean of its divisors is an integer number (6064560).

Almost surely, 2^23247457 is an apocalyptic number.

It is an amenable number.

23247457 is a deficient number, since it is larger than the sum of its proper divisors (1010783).

23247457 is a wasteful number, since it uses less digits than its factorization.

23247457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010782.

The product of its digits is 47040, while the sum is 34.

The square root of 23247457 is about 4821.5616764696. The cubic root of 23247457 is about 285.4029674660.

The spelling of 23247457 in words is "twenty-three million, two hundred forty-seven thousand, four hundred fifty-seven".