23953401 has 20 divisors (see below), whose sum is σ = 36112692. Its totient is φ = 15821568.

The previous prime is 23953387. The next prime is 23953441. The reversal of 23953401 is 10435932.

It can be written as a sum of positive squares in 2 ways, for example, as 11696400 + 12257001 = 3420^2 + 3501^2 .

It is not a de Polignac number, because 23953401 - 2⁶ = 23953337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23953441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7845 + ... + 10461.

Almost surely, 2^23953401 is an apocalyptic number.

It is an amenable number.

23953401 is a deficient number, since it is larger than the sum of its proper divisors (12159291).

23953401 is a wasteful number, since it uses less digits than its factorization.

23953401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742 (or 2733 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 23953401 is about 4894.2211842131. The cubic root of 23953401 is about 288.2631059173.

The spelling of 23953401 in words is "twenty-three million, nine hundred fifty-three thousand, four hundred one".