253867 has 2 divisors, whose sum is σ = 253868. Its totient is φ = 253866.

The previous prime is 253853. The next prime is 253871. The reversal of 253867 is 768352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253867 is a prime.

It is not a weakly prime, because it can be changed into another prime (253367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126933 + 126934.

It is an arithmetic number, because the mean of its divisors is an integer number (126934).

2²⁵³⁸⁶⁷ is an apocalyptic number.

253867 is a deficient number, since it is larger than the sum of its proper divisors (1).

253867 is an equidigital number, since it uses as much as digits as its factorization.

253867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 253867 is about 503.8521608567. The cubic root of 253867 is about 63.3191996778.

The spelling of 253867 in words is "two hundred fifty-three thousand, eight hundred sixty-seven".