253708979 has 2 divisors, whose sum is σ = 253708980. Its totient is φ = 253708978.

The previous prime is 253708937. The next prime is 253709041. The reversal of 253708979 is 979807352.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253708979 - 2¹² = 253704883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253708079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126854489 + 126854490.

It is an arithmetic number, because the mean of its divisors is an integer number (126854490).

Almost surely, 2^253708979 is an apocalyptic number.

253708979 is a deficient number, since it is larger than the sum of its proper divisors (1).

253708979 is an equidigital number, since it uses as much as digits as its factorization.

253708979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 253708979 is about 15928.2446929974. The cubic root of 253708979 is about 633.0605914878.

The spelling of 253708979 in words is "two hundred fifty-three million, seven hundred eight thousand, nine hundred seventy-nine".