117700997 has 2 divisors, whose sum is σ = 117700998. Its totient is φ = 117700996.

The previous prime is 117700981. The next prime is 117701009. The reversal of 117700997 is 799007711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117700801 + 196 = 10849^2 + 14^2 .

It is a cyclic number.

It is not a de Polignac number, because 117700997 - 2⁴ = 117700981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117700907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58850498 + 58850499.

It is an arithmetic number, because the mean of its divisors is an integer number (58850499).

Almost surely, 2^117700997 is an apocalyptic number.

It is an amenable number.

117700997 is a deficient number, since it is larger than the sum of its proper divisors (1).

117700997 is an equidigital number, since it uses as much as digits as its factorization.

117700997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27783, while the sum is 41.

The square root of 117700997 is about 10849.0090330868. The cubic root of 117700997 is about 490.0721773449.

The spelling of 117700997 in words is "one hundred seventeen million, seven hundred thousand, nine hundred ninety-seven".