23986493 has 16 divisors (see below), whose sum is σ = 26611200. Its totient is φ = 21518640.

The previous prime is 23986477. The next prime is 23986499. The reversal of 23986493 is 39468932.

It is not a de Polignac number, because 23986493 - 2⁴ = 23986477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23986499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57038 + ... + 57456.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^23986493 is an apocalyptic number.

23986493 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23986493 is a deficient number, since it is larger than the sum of its proper divisors (2624707).

23986493 is a wasteful number, since it uses less digits than its factorization.

23986493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592.

The product of its digits is 279936, while the sum is 44.

The square root of 23986493 is about 4897.6007391375. The cubic root of 23986493 is about 288.3957915043.

The spelling of 23986493 in words is "twenty-three million, nine hundred eighty-six thousand, four hundred ninety-three".