117947566 has 16 divisors (see below), whose sum is σ = 194882688. Its totient is φ = 53091000.

The previous prime is 117947563. The next prime is 117947579. The reversal of 117947566 is 665749711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117947563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23760 + ... + 28291.

It is an arithmetic number, because the mean of its divisors is an integer number (12180168).

Almost surely, 2^117947566 is an apocalyptic number.

117947566 is a deficient number, since it is larger than the sum of its proper divisors (76935122).

117947566 is a wasteful number, since it uses less digits than its factorization.

117947566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52167.

The product of its digits is 317520, while the sum is 46.

The square root of 117947566 is about 10860.3667525549. The cubic root of 117947566 is about 490.4141521472.

The spelling of 117947566 in words is "one hundred seventeen million, nine hundred forty-seven thousand, five hundred sixty-six".