115579663 has 2 divisors, whose sum is σ = 115579664. Its totient is φ = 115579662.

The previous prime is 115579661. The next prime is 115579759. The reversal of 115579663 is 366975511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115579663 - 2¹ = 115579661 is a prime.

Together with 115579661, 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 (115579661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57789831 + 57789832.

It is an arithmetic number, because the mean of its divisors is an integer number (57789832).

Almost surely, 2^115579663 is an apocalyptic number.

115579663 is a deficient number, since it is larger than the sum of its proper divisors (1).

115579663 is an equidigital number, since it uses as much as digits as its factorization.

115579663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 43.

The square root of 115579663 is about 10750.7982494325. The cubic root of 115579663 is about 487.1101075407.

The spelling of 115579663 in words is "one hundred fifteen million, five hundred seventy-nine thousand, six hundred sixty-three".