116879391 has 6 divisors (see below), whose sum is σ = 168825800. Its totient is φ = 77919588.

The previous prime is 116879387. The next prime is 116879407. The reversal of 116879391 is 193978611.

It is not a de Polignac number, because 116879391 - 2² = 116879387 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 (116879341) 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 5 ways as a sum of consecutive naturals, for example, 6493291 + ... + 6493308.

Almost surely, 2^116879391 is an apocalyptic number.

116879391 is a deficient number, since it is larger than the sum of its proper divisors (51946409).

116879391 is a wasteful number, since it uses less digits than its factorization.

116879391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12986605 (or 12986602 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 116879391 is about 10811.0772358725. The cubic root of 116879391 is about 488.9292055040.

The spelling of 116879391 in words is "one hundred sixteen million, eight hundred seventy-nine thousand, three hundred ninety-one".