117646943 has 2 divisors, whose sum is σ = 117646944. Its totient is φ = 117646942.

The previous prime is 117646933. The next prime is 117646957. The reversal of 117646943 is 349646711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117646943 - 2⁴ = 117646927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117646943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117646913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58823471 + 58823472.

It is an arithmetic number, because the mean of its divisors is an integer number (58823472).

Almost surely, 2^117646943 is an apocalyptic number.

117646943 is a deficient number, since it is larger than the sum of its proper divisors (1).

117646943 is an equidigital number, since it uses as much as digits as its factorization.

117646943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 117646943 is about 10846.5175517306. The cubic root of 117646943 is about 489.9971442288.

The spelling of 117646943 in words is "one hundred seventeen million, six hundred forty-six thousand, nine hundred forty-three".