23427387 has 24 divisors (see below), whose sum is σ = 35329840. Its totient is φ = 15513120.

The previous prime is 23427347. The next prime is 23427403. The reversal of 23427387 is 78372432.

It is not a de Polignac number, because 23427387 - 2⁷ = 23427259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23427347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55437 + ... + 55857.

Almost surely, 2^23427387 is an apocalyptic number.

23427387 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23427387 is a deficient number, since it is larger than the sum of its proper divisors (11902453).

23427387 is an equidigital number, since it uses as much as digits as its factorization.

23427387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 653 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 23427387 is about 4840.1846039175. The cubic root of 23427387 is about 286.1373938452.

The spelling of 23427387 in words is "twenty-three million, four hundred twenty-seven thousand, three hundred eighty-seven".