23986641 has 16 divisors (see below), whose sum is σ = 36644864. Its totient is φ = 13671504.

The previous prime is 23986639. The next prime is 23986673. The reversal of 23986641 is 14668932.

It is not a de Polignac number, because 23986641 - 2¹ = 23986639 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 23986641.

It is not an unprimeable number, because it can be changed into a prime (23986601) 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 15 ways as a sum of consecutive naturals, for example, 8490 + ... + 10956.

It is an arithmetic number, because the mean of its divisors is an integer number (2290304).

Almost surely, 2^23986641 is an apocalyptic number.

23986641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23986641 is a deficient number, since it is larger than the sum of its proper divisors (12658223).

23986641 is a wasteful number, since it uses less digits than its factorization.

23986641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940.

The product of its digits is 62208, while the sum is 39.

The square root of 23986641 is about 4897.6158485533. The cubic root of 23986641 is about 288.3963846505.

The spelling of 23986641 in words is "twenty-three million, nine hundred eighty-six thousand, six hundred forty-one".