116785857 has 4 divisors (see below), whose sum is σ = 155714480. Its totient is φ = 77857236.

The previous prime is 116785831. The next prime is 116785859. The reversal of 116785857 is 758587611.

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 not a de Polignac number, because 116785857 - 2¹⁵ = 116753089 is a prime.

It is a super-3 number, since 3×116785857³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116785859) 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, 19464307 + ... + 19464312.

It is an arithmetic number, because the mean of its divisors is an integer number (38928620).

Almost surely, 2^116785857 is an apocalyptic number.

It is an amenable number.

116785857 is a deficient number, since it is larger than the sum of its proper divisors (38928623).

116785857 is an equidigital number, since it uses as much as digits as its factorization.

116785857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38928622.

The product of its digits is 470400, while the sum is 48.

The square root of 116785857 is about 10806.7505291831. The cubic root of 116785857 is about 488.7987470648.

The spelling of 116785857 in words is "one hundred sixteen million, seven hundred eighty-five thousand, eight hundred fifty-seven".