116684621 has 4 divisors (see below), whose sum is σ = 116761500. Its totient is φ = 116607744.

The previous prime is 116684611. The next prime is 116684639. The reversal of 116684621 is 126486611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24255625 + 92428996 = 4925^2 + 9614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116684621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116684611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36116 + ... + 39213.

It is an arithmetic number, because the mean of its divisors is an integer number (29190375).

Almost surely, 2^116684621 is an apocalyptic number.

It is an amenable number.

116684621 is a deficient number, since it is larger than the sum of its proper divisors (76879).

116684621 is an equidigital number, since it uses as much as digits as its factorization.

116684621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76878.

The product of its digits is 13824, while the sum is 35.

The square root of 116684621 is about 10802.0655895065. The cubic root of 116684621 is about 488.6574675852.

The spelling of 116684621 in words is "one hundred sixteen million, six hundred eighty-four thousand, six hundred twenty-one".