117566873 has 2 divisors, whose sum is σ = 117566874. Its totient is φ = 117566872.

The previous prime is 117566863. The next prime is 117566903. The reversal of 117566873 is 378665711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110103049 + 7463824 = 10493^2 + 2732^2 .

It is an emirp because it is prime and its reverse (378665711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117566873 - 2⁶ = 117566809 is a prime.

It is not a weakly prime, because it can be changed into another prime (117566863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58783436 + 58783437.

It is an arithmetic number, because the mean of its divisors is an integer number (58783437).

Almost surely, 2^117566873 is an apocalyptic number.

It is an amenable number.

117566873 is a deficient number, since it is larger than the sum of its proper divisors (1).

117566873 is an equidigital number, since it uses as much as digits as its factorization.

117566873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 117566873 is about 10842.8258770488. The cubic root of 117566873 is about 489.8859556886.

The spelling of 117566873 in words is "one hundred seventeen million, five hundred sixty-six thousand, eight hundred seventy-three".