117402977 has 2 divisors, whose sum is σ = 117402978. Its totient is φ = 117402976.

The previous prime is 117402947. The next prime is 117403019. The reversal of 117402977 is 779204711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117310561 + 92416 = 10831^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 117402977 - 2⁶ = 117402913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117402977.

It is not a weakly prime, because it can be changed into another prime (117402917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58701488 + 58701489.

It is an arithmetic number, because the mean of its divisors is an integer number (58701489).

Almost surely, 2^117402977 is an apocalyptic number.

It is an amenable number.

117402977 is a deficient number, since it is larger than the sum of its proper divisors (1).

117402977 is an equidigital number, since it uses as much as digits as its factorization.

117402977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 117402977 is about 10835.2654328355. The cubic root of 117402977 is about 489.6582053440.

The spelling of 117402977 in words is "one hundred seventeen million, four hundred two thousand, nine hundred seventy-seven".