252697 has 4 divisors (see below), whose sum is σ = 257040. Its totient is φ = 248356.

The previous prime is 252691. The next prime is 252709. The reversal of 252697 is 796252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252697 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (252691) by changing a digit.

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, 2083 + ... + 2200.

It is an arithmetic number, because the mean of its divisors is an integer number (64260).

2²⁵²⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

252697 is a deficient number, since it is larger than the sum of its proper divisors (4343).

252697 is an equidigital number, since it uses as much as digits as its factorization.

252697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342.

The product of its digits is 7560, while the sum is 31.

The square root of 252697 is about 502.6897651634. The cubic root of 252697 is about 63.2217765314.

It can be divided in two parts, 252 and 697, that added together give a palindrome (949).

The spelling of 252697 in words is "two hundred fifty-two thousand, six hundred ninety-seven".