23423457 has 8 divisors (see below), whose sum is σ = 31259200. Its totient is φ = 15601680.

The previous prime is 23423443. The next prime is 23423461. The reversal of 23423457 is 75432432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23423457 - 2⁴ = 23423441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23423417) 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 7 ways as a sum of consecutive naturals, for example, 1407 + ... + 6987.

It is an arithmetic number, because the mean of its divisors is an integer number (3907400).

Almost surely, 2^23423457 is an apocalyptic number.

It is an amenable number.

23423457 is a deficient number, since it is larger than the sum of its proper divisors (7835743).

23423457 is a wasteful number, since it uses less digits than its factorization.

23423457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983.

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

The square root of 23423457 is about 4839.7786106391. The cubic root of 23423457 is about 286.1213928738.

Adding to 23423457 its reverse (75432432), we get a palindrome (98855889).

The spelling of 23423457 in words is "twenty-three million, four hundred twenty-three thousand, four hundred fifty-seven".