116775391 has 4 divisors (see below), whose sum is σ = 116991784. Its totient is φ = 116559000.

The previous prime is 116775371. The next prime is 116775433. The reversal of 116775391 is 193577611.

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

It is a cyclic number.

It is not a de Polignac number, because 116775391 - 2²³ = 108386783 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 (116775331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107385 + ... + 108466.

It is an arithmetic number, because the mean of its divisors is an integer number (29247946).

Almost surely, 2^116775391 is an apocalyptic number.

116775391 is a deficient number, since it is larger than the sum of its proper divisors (216393).

116775391 is an equidigital number, since it uses as much as digits as its factorization.

116775391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216392.

The product of its digits is 39690, while the sum is 40.

The square root of 116775391 is about 10806.2662839669. The cubic root of 116775391 is about 488.7841450669.

The spelling of 116775391 in words is "one hundred sixteen million, seven hundred seventy-five thousand, three hundred ninety-one".