118886857 has 4 divisors (see below), whose sum is σ = 125144080. Its totient is φ = 112629636.

The previous prime is 118886843. The next prime is 118886861. The reversal of 118886857 is 758688811.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 758688811 = 37 ⋅20505103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118886857 is a prime.

It is a super-3 number, since 3×118886857³ (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 (118886557) 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, 3128583 + ... + 3128620.

It is an arithmetic number, because the mean of its divisors is an integer number (31286020).

Almost surely, 2^118886857 is an apocalyptic number.

It is an amenable number.

118886857 is a deficient number, since it is larger than the sum of its proper divisors (6257223).

118886857 is an equidigital number, since it uses as much as digits as its factorization.

118886857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6257222.

The product of its digits is 860160, while the sum is 52.

The square root of 118886857 is about 10903.5249804822. The cubic root of 118886857 is about 491.7125375314.

The spelling of 118886857 in words is "one hundred eighteen million, eight hundred eighty-six thousand, eight hundred fifty-seven".