23891401 has 8 divisors (see below), whose sum is σ = 24373440. Its totient is φ = 23412048.

The previous prime is 23891353. The next prime is 23891407. The reversal of 23891401 is 10419832.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23891401 - 2¹⁷ = 23760329 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 23891401.

It is not an unprimeable number, because it can be changed into a prime (23891407) 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, 32500 + ... + 33226.

It is an arithmetic number, because the mean of its divisors is an integer number (3046680).

Almost surely, 2^23891401 is an apocalyptic number.

It is an amenable number.

23891401 is a deficient number, since it is larger than the sum of its proper divisors (482039).

23891401 is an equidigital number, since it uses as much as digits as its factorization.

23891401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 23891401 is about 4887.8830796164. The cubic root of 23891401 is about 288.0141815612.

The spelling of 23891401 in words is "twenty-three million, eight hundred ninety-one thousand, four hundred one".