117828677 has 2 divisors, whose sum is σ = 117828678. Its totient is φ = 117828676.

The previous prime is 117828619. The next prime is 117828703. The reversal of 117828677 is 776828711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70576801 + 47251876 = 8401^2 + 6874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117828677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117828617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58914338 + 58914339.

It is an arithmetic number, because the mean of its divisors is an integer number (58914339).

Almost surely, 2^117828677 is an apocalyptic number.

It is an amenable number.

117828677 is a deficient number, since it is larger than the sum of its proper divisors (1).

117828677 is an equidigital number, since it uses as much as digits as its factorization.

117828677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 263424, while the sum is 47.

The square root of 117828677 is about 10854.8918465363. The cubic root of 117828677 is about 490.2493205723.

The spelling of 117828677 in words is "one hundred seventeen million, eight hundred twenty-eight thousand, six hundred seventy-seven".