252687 has 4 divisors (see below), whose sum is σ = 336920. Its totient is φ = 168456.

The previous prime is 252667. The next prime is 252691. The reversal of 252687 is 786252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 252687 - 2⁷ = 252559 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252607) 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, 42112 + ... + 42117.

It is an arithmetic number, because the mean of its divisors is an integer number (84230).

2²⁵²⁶⁸⁷ is an apocalyptic number.

252687 is a deficient number, since it is larger than the sum of its proper divisors (84233).

252687 is an equidigital number, since it uses as much as digits as its factorization.

252687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84232.

The product of its digits is 6720, while the sum is 30.

The square root of 252687 is about 502.6798185724. The cubic root of 252687 is about 63.2209425601.

It can be divided in two parts, 252 and 687, that added together give a palindrome (939).

The spelling of 252687 in words is "two hundred fifty-two thousand, six hundred eighty-seven".