253897 has 16 divisors (see below), whose sum is σ = 322560. Its totient is φ = 194832.

The previous prime is 253879. The next prime is 253901. The reversal of 253897 is 798352.

It is a cyclic number.

It is not a de Polignac number, because 253897 - 2⁷ = 253769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3018 + ... + 3100.

It is an arithmetic number, because the mean of its divisors is an integer number (20160).

2²⁵³⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

253897 is a deficient number, since it is larger than the sum of its proper divisors (68663).

253897 is a wasteful number, since it uses less digits than its factorization.

253897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132.

The product of its digits is 15120, while the sum is 34.

The square root of 253897 is about 503.8819306147. The cubic root of 253897 is about 63.3216937674.

The spelling of 253897 in words is "two hundred fifty-three thousand, eight hundred ninety-seven".