23432457 has 4 divisors (see below), whose sum is σ = 31243280. Its totient is φ = 15621636.

The previous prime is 23432447. The next prime is 23432467. The reversal of 23432457 is 75423432.

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 an interprime number because it is at equal distance from previous prime (23432447) and next prime (23432467).

It is not a de Polignac number, because 23432457 - 2⁷ = 23432329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23432447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3905407 + ... + 3905412.

It is an arithmetic number, because the mean of its divisors is an integer number (7810820).

Almost surely, 2^23432457 is an apocalyptic number.

It is an amenable number.

23432457 is a deficient number, since it is larger than the sum of its proper divisors (7810823).

23432457 is an equidigital number, since it uses as much as digits as its factorization.

23432457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810822.

The product of its digits is 20160, while the sum is 30.

The square root of 23432457 is about 4840.7083159389. The cubic root of 23432457 is about 286.1580336765.

Adding to 23432457 its reverse (75423432), we get a palindrome (98855889).

The spelling of 23432457 in words is "twenty-three million, four hundred thirty-two thousand, four hundred fifty-seven".