23878287 has 32 divisors (see below), whose sum is σ = 36706560. Its totient is φ = 15331680.

The previous prime is 23878279. The next prime is 23878291. The reversal of 23878287 is 78287832.

It is not a de Polignac number, because 23878287 - 2³ = 23878279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23878207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152013 + ... + 152169.

It is an arithmetic number, because the mean of its divisors is an integer number (1147080).

Almost surely, 2^23878287 is an apocalyptic number.

23878287 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23878287 is a deficient number, since it is larger than the sum of its proper divisors (12828273).

23878287 is a wasteful number, since it uses less digits than its factorization.

23878287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 334 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 23878287 is about 4886.5414149478. The cubic root of 23878287 is about 287.9614748815.

The spelling of 23878287 in words is "twenty-three million, eight hundred seventy-eight thousand, two hundred eighty-seven".