117963899 has 2 divisors, whose sum is σ = 117963900. Its totient is φ = 117963898.

The previous prime is 117963869. The next prime is 117963917. The reversal of 117963899 is 998369711.

It is a strong prime.

It is an emirp because it is prime and its reverse (998369711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117963899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117963899.

It is not a weakly prime, because it can be changed into another prime (117963869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58981949 + 58981950.

It is an arithmetic number, because the mean of its divisors is an integer number (58981950).

Almost surely, 2^117963899 is an apocalyptic number.

117963899 is a deficient number, since it is larger than the sum of its proper divisors (1).

117963899 is an equidigital number, since it uses as much as digits as its factorization.

117963899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 53.

The square root of 117963899 is about 10861.1186808726. The cubic root of 117963899 is about 490.4367880944.

The spelling of 117963899 in words is "one hundred seventeen million, nine hundred sixty-three thousand, eight hundred ninety-nine".