253789 has 2 divisors, whose sum is σ = 253790. Its totient is φ = 253788.

The previous prime is 253787. The next prime is 253801. The reversal of 253789 is 987352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240100 + 13689 = 490^2 + 117^2 .

It is a cyclic number.

It is not a de Polignac number, because 253789 - 2¹ = 253787 is a prime.

Together with 253787, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126894 + 126895.

It is an arithmetic number, because the mean of its divisors is an integer number (126895).

2²⁵³⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

253789 is a deficient number, since it is larger than the sum of its proper divisors (1).

253789 is an equidigital number, since it uses as much as digits as its factorization.

253789 is an evil number, because the sum of its binary digits is even.

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

The square root of 253789 is about 503.7747512530. The cubic root of 253789 is about 63.3127141250.

The spelling of 253789 in words is "two hundred fifty-three thousand, seven hundred eighty-nine".