117401866 has 4 divisors (see below), whose sum is σ = 176102802. Its totient is φ = 58700932.

The previous prime is 117401857. The next prime is 117401873. The reversal of 117401866 is 668104711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68807025 + 48594841 = 8295^2 + 6971^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29350465 + ... + 29350468.

Almost surely, 2^117401866 is an apocalyptic number.

117401866 is a deficient number, since it is larger than the sum of its proper divisors (58700936).

117401866 is an equidigital number, since it uses as much as digits as its factorization.

117401866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58700935.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 117401866 is about 10835.2141649346. The cubic root of 117401866 is about 489.6566607722.

The spelling of 117401866 in words is "one hundred seventeen million, four hundred one thousand, eight hundred sixty-six".