23421975 has 24 divisors (see below), whose sum is σ = 39045120. Its totient is φ = 12388320.

The previous prime is 23421961. The next prime is 23421989. The reversal of 23421975 is 57912432.

It is an interprime number because it is at equal distance from previous prime (23421961) and next prime (23421989).

It is not a de Polignac number, because 23421975 - 2⁷ = 23421847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8296 + ... + 10754.

It is an arithmetic number, because the mean of its divisors is an integer number (1626880).

Almost surely, 2^23421975 is an apocalyptic number.

23421975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23421975 is a deficient number, since it is larger than the sum of its proper divisors (15623145).

23421975 is a wasteful number, since it uses less digits than its factorization.

23421975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599 (or 2594 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 23421975 is about 4839.6255020404. The cubic root of 23421975 is about 286.1153584550.

The spelling of 23421975 in words is "twenty-three million, four hundred twenty-one thousand, nine hundred seventy-five".