23963401 has 24 divisors (see below), whose sum is σ = 31748544. Its totient is φ = 17851680.

The previous prime is 23963377. The next prime is 23963411. The reversal of 23963401 is 10436932.

It is not a de Polignac number, because 23963401 - 2⁵ = 23963369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23963401.

It is not an unprimeable number, because it can be changed into a prime (23963411) 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 23 ways as a sum of consecutive naturals, for example, 11431 + ... + 13363.

It is an arithmetic number, because the mean of its divisors is an integer number (1322856).

Almost surely, 2^23963401 is an apocalyptic number.

It is an amenable number.

23963401 is a deficient number, since it is larger than the sum of its proper divisors (7785143).

23963401 is a wasteful number, since it uses less digits than its factorization.

23963401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 23963401 is about 4895.2426906130. The cubic root of 23963401 is about 288.3032147660.

The spelling of 23963401 in words is "twenty-three million, nine hundred sixty-three thousand, four hundred one".