117917263 has 2 divisors, whose sum is σ = 117917264. Its totient is φ = 117917262.

The previous prime is 117917243. The next prime is 117917279. The reversal of 117917263 is 362719711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117917263 - 2⁵ = 117917231 is a prime.

It is a super-2 number, since 2×117917263² = 27808961826822338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117917243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58958631 + 58958632.

It is an arithmetic number, because the mean of its divisors is an integer number (58958632).

Almost surely, 2^117917263 is an apocalyptic number.

117917263 is a deficient number, since it is larger than the sum of its proper divisors (1).

117917263 is an equidigital number, since it uses as much as digits as its factorization.

117917263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 37.

The square root of 117917263 is about 10858.9715443038. The cubic root of 117917263 is about 490.3721496048.

The spelling of 117917263 in words is "one hundred seventeen million, nine hundred seventeen thousand, two hundred sixty-three".