258879763 has 2 divisors, whose sum is σ = 258879764. Its totient is φ = 258879762.

The previous prime is 258879749. The next prime is 258879767. The reversal of 258879763 is 367978852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258879763 is a prime.

It is not a weakly prime, because it can be changed into another prime (258879767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129439881 + 129439882.

It is an arithmetic number, because the mean of its divisors is an integer number (129439882).

Almost surely, 2^258879763 is an apocalyptic number.

258879763 is a deficient number, since it is larger than the sum of its proper divisors (1).

258879763 is an equidigital number, since it uses as much as digits as its factorization.

258879763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 55.

The square root of 258879763 is about 16089.7409239552. The cubic root of 258879763 is about 637.3324541373.

It can be divided in two parts, 25 and 8879763, that added together give a palindrome (8879788).

The spelling of 258879763 in words is "two hundred fifty-eight million, eight hundred seventy-nine thousand, seven hundred sixty-three".