23786493 has 4 divisors (see below), whose sum is σ = 31715328. Its totient is φ = 15857660.

The previous prime is 23786479. The next prime is 23786501. The reversal of 23786493 is 39468732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23786493 - 2⁶ = 23786429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23786443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3964413 + ... + 3964418.

It is an arithmetic number, because the mean of its divisors is an integer number (7928832).

Almost surely, 2^23786493 is an apocalyptic number.

It is an amenable number.

23786493 is a deficient number, since it is larger than the sum of its proper divisors (7928835).

23786493 is an equidigital number, since it uses as much as digits as its factorization.

23786493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7928834.

The product of its digits is 217728, while the sum is 42.

The square root of 23786493 is about 4877.1398380608. The cubic root of 23786493 is about 287.5920028172.

The spelling of 23786493 in words is "twenty-three million, seven hundred eighty-six thousand, four hundred ninety-three".