117663677 has 2 divisors, whose sum is σ = 117663678. Its totient is φ = 117663676.

The previous prime is 117663649. The next prime is 117663697. The reversal of 117663677 is 776366711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79049881 + 38613796 = 8891^2 + 6214^2 .

It is an emirp because it is prime and its reverse (776366711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117663677 - 2⁸ = 117663421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117663697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58831838 + 58831839.

It is an arithmetic number, because the mean of its divisors is an integer number (58831839).

Almost surely, 2^117663677 is an apocalyptic number.

It is an amenable number.

117663677 is a deficient number, since it is larger than the sum of its proper divisors (1).

117663677 is an equidigital number, since it uses as much as digits as its factorization.

117663677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 44.

The square root of 117663677 is about 10847.2889239662. The cubic root of 117663677 is about 490.0203753849.

The spelling of 117663677 in words is "one hundred seventeen million, six hundred sixty-three thousand, six hundred seventy-seven".