23387 has 8 divisors (see below), whose sum is σ = 28896. Its totient is φ = 18432.

The previous prime is 23371. The next prime is 23399. The reversal of 23387 is 78332.

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 23387 - 2⁴ = 23371 is a prime.

It is a d-powerful number, because it can be written as 2³ + 3 + 3⁸ + 8 + 7⁵ .

23387 is an undulating number in base 16.

It is a nialpdrome in base 8 and base 13.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (23327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38 + ... + 219.

It is an arithmetic number, because the mean of its divisors is an integer number (3612).

2²³³⁸⁷ is an apocalyptic number.

23387 is a deficient number, since it is larger than the sum of its proper divisors (5509).

23387 is a wasteful number, since it uses less digits than its factorization.

23387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its digits is 1008, while the sum is 23.

The square root of 23387 is about 152.9280876752. The cubic root of 23387 is about 28.5972873036.

Subtracting 23387 from its reverse (78332), we obtain a palindrome (54945).

The spelling of 23387 in words is "twenty-three thousand, three hundred eighty-seven".