253873 has 4 divisors (see below), whose sum is σ = 256000. Its totient is φ = 251748.

The previous prime is 253871. The next prime is 253879. The reversal of 253873 is 378352.

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 not a de Polignac number, because 253873 - 2¹ = 253871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253871) 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 3 ways as a sum of consecutive naturals, for example, 873 + ... + 1126.

It is an arithmetic number, because the mean of its divisors is an integer number (64000).

2²⁵³⁸⁷³ is an apocalyptic number.

It is an amenable number.

253873 is a deficient number, since it is larger than the sum of its proper divisors (2127).

253873 is a wasteful number, since it uses less digits than its factorization.

253873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126.

The product of its digits is 5040, while the sum is 28.

The square root of 253873 is about 503.8581149490. The cubic root of 253873 is about 63.3196985114.

The spelling of 253873 in words is "two hundred fifty-three thousand, eight hundred seventy-three".