117964805 has 12 divisors (see below), whose sum is σ = 164669580. Its totient is φ = 80889984.

The previous prime is 117964801. The next prime is 117964807. The reversal of 117964805 is 508469711.

It can be written as a sum of positive squares in 2 ways, for example, as 26399044 + 91565761 = 5138^2 + 9569^2 .

It is not a de Polignac number, because 117964805 - 2² = 117964801 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117964801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240500 + ... + 240989.

It is an arithmetic number, because the mean of its divisors is an integer number (13722465).

Almost surely, 2^117964805 is an apocalyptic number.

It is an amenable number.

117964805 is a deficient number, since it is larger than the sum of its proper divisors (46704775).

117964805 is an equidigital number, since it uses as much as digits as its factorization.

117964805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481508 (or 481501 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 117964805 is about 10861.1603892034. The cubic root of 117964805 is about 490.4380436610.

It can be divided in two parts, 11796480 and 5, that multiplied together give a square (58982400 = 7680²).

The spelling of 117964805 in words is "one hundred seventeen million, nine hundred sixty-four thousand, eight hundred five".