253793 has 4 divisors (see below), whose sum is σ = 268740.
Its totient is φ = 238848.
The previous prime is 253789. The next prime is 253801. The reversal of 253793 is 397352.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 208849 + 44944 = 457^2 + 212^2
It is a cyclic number.
It is not a de Polignac number, because 253793 - 22 = 253789 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (253703) 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, 7448 + ... + 7481.
It is an arithmetic number, because the mean of its divisors is an integer number (67185).
2253793 is an apocalyptic number.
It is an amenable number.
253793 is a deficient number, since it is larger than the sum of its proper divisors (14947).
253793 is a wasteful number, since it uses less digits than its factorization.
253793 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14946.
The product of its digits is 5670, while the sum is 29.
The square root of 253793 is about 503.7787212656.
The cubic root of 253793 is about 63.3130467498.
The spelling of 253793 in words is "two hundred fifty-three thousand, seven hundred ninety-three".