117826461 has 8 divisors (see below), whose sum is σ = 174557760. Its totient is φ = 78550956.

The previous prime is 117826433. The next prime is 117826483. The reversal of 117826461 is 164628711.

It is a happy number.

117826461 is a `hidden beast` number, since 1 + 1 + 7 + 8 + 2 + 646 + 1 = 666.

It is not a de Polignac number, because 117826461 - 2⁹ = 117825949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117826361) 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, 2181945 + ... + 2181998.

It is an arithmetic number, because the mean of its divisors is an integer number (21819720).

Almost surely, 2^117826461 is an apocalyptic number.

It is an amenable number.

117826461 is a deficient number, since it is larger than the sum of its proper divisors (56731299).

117826461 is an equidigital number, since it uses as much as digits as its factorization.

117826461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363952 (or 4363946 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 117826461 is about 10854.7897722618. The cubic root of 117826461 is about 490.2462471855.

The spelling of 117826461 in words is "one hundred seventeen million, eight hundred twenty-six thousand, four hundred sixty-one".