117804961 has 4 divisors (see below), whose sum is σ = 119563312. Its totient is φ = 116046612.

The previous prime is 117804923. The next prime is 117804979. The reversal of 117804961 is 169408711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117804961 - 2¹¹ = 117802913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117804961.

It is not an unprimeable number, because it can be changed into a prime (117804361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879075 + ... + 879208.

It is an arithmetic number, because the mean of its divisors is an integer number (29890828).

Almost surely, 2^117804961 is an apocalyptic number.

It is an amenable number.

117804961 is a deficient number, since it is larger than the sum of its proper divisors (1758351).

117804961 is an equidigital number, since it uses as much as digits as its factorization.

117804961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758350.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 117804961 is about 10853.7993808620. The cubic root of 117804961 is about 490.2164266754.

The spelling of 117804961 in words is "one hundred seventeen million, eight hundred four thousand, nine hundred sixty-one".