252686 has 8 divisors (see below), whose sum is σ = 433200. Its totient is φ = 108288.

The previous prime is 252667. The next prime is 252691. The reversal of 252686 is 686252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9011 + ... + 9038.

It is an arithmetic number, because the mean of its divisors is an integer number (54150).

2²⁵²⁶⁸⁶ is an apocalyptic number.

252686 is a deficient number, since it is larger than the sum of its proper divisors (180514).

252686 is a wasteful number, since it uses less digits than its factorization.

252686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18058.

The product of its digits is 5760, while the sum is 29.

The square root of 252686 is about 502.6788239025. The cubic root of 252686 is about 63.2208591618.

The spelling of 252686 in words is "two hundred fifty-two thousand, six hundred eighty-six".