253973 has 4 divisors (see below), whose sum is σ = 267360. Its totient is φ = 240588.

The previous prime is 253969. The next prime is 253987. The reversal of 253973 is 379352.

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 253973 - 2² = 253969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253973.

It is not an unprimeable number, because it can be changed into a prime (253993) 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, 6665 + ... + 6702.

It is an arithmetic number, because the mean of its divisors is an integer number (66840).

2²⁵³⁹⁷³ is an apocalyptic number.

It is an amenable number.

253973 is a deficient number, since it is larger than the sum of its proper divisors (13387).

253973 is a wasteful number, since it uses less digits than its factorization.

253973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13386.

The product of its digits is 5670, while the sum is 29.

The square root of 253973 is about 503.9573394644. The cubic root of 253973 is about 63.3280112487.

The spelling of 253973 in words is "two hundred fifty-three thousand, nine hundred seventy-three".