117517963 has 2 divisors, whose sum is σ = 117517964. Its totient is φ = 117517962.

The previous prime is 117517937. The next prime is 117517969. The reversal of 117517963 is 369715711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117517963 is a prime.

It is not a weakly prime, because it can be changed into another prime (117517969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58758981 + 58758982.

It is an arithmetic number, because the mean of its divisors is an integer number (58758982).

Almost surely, 2^117517963 is an apocalyptic number.

117517963 is a deficient number, since it is larger than the sum of its proper divisors (1).

117517963 is an equidigital number, since it uses as much as digits as its factorization.

117517963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 40.

The square root of 117517963 is about 10840.5702340790. The cubic root of 117517963 is about 489.8180123842.

The spelling of 117517963 in words is "one hundred seventeen million, five hundred seventeen thousand, nine hundred sixty-three".