117944977 has 2 divisors, whose sum is σ = 117944978. Its totient is φ = 117944976.

The previous prime is 117944947. The next prime is 117945013. The reversal of 117944977 is 779449711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92179201 + 25765776 = 9601^2 + 5076^2 .

It is a cyclic number.

It is not a de Polignac number, because 117944977 - 2¹⁵ = 117912209 is a prime.

It is a super-2 number, since 2×117944977² = 27822035199061058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117944977.

It is not a weakly prime, because it can be changed into another prime (117944917) 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, 58972488 + 58972489.

It is an arithmetic number, because the mean of its divisors is an integer number (58972489).

Almost surely, 2^117944977 is an apocalyptic number.

It is an amenable number.

117944977 is a deficient number, since it is larger than the sum of its proper divisors (1).

117944977 is an equidigital number, since it uses as much as digits as its factorization.

117944977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 49.

The square root of 117944977 is about 10860.2475570311. The cubic root of 117944977 is about 490.4105638535.

The spelling of 117944977 in words is "one hundred seventeen million, nine hundred forty-four thousand, nine hundred seventy-seven".