23873657 has 4 divisors (see below), whose sum is σ = 23922000. Its totient is φ = 23825316.

The previous prime is 23873639. The next prime is 23873659. The reversal of 23873657 is 75637832.

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 not a de Polignac number, because 23873657 - 2⁸ = 23873401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23873659) 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, 23423 + ... + 24420.

It is an arithmetic number, because the mean of its divisors is an integer number (5980500).

Almost surely, 2^23873657 is an apocalyptic number.

It is an amenable number.

23873657 is a deficient number, since it is larger than the sum of its proper divisors (48343).

23873657 is an equidigital number, since it uses as much as digits as its factorization.

23873657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48342.

The product of its digits is 211680, while the sum is 41.

The square root of 23873657 is about 4886.0676417749. The cubic root of 23873657 is about 287.9428617679.

The spelling of 23873657 in words is "twenty-three million, eight hundred seventy-three thousand, six hundred fifty-seven".