118897870 has 32 divisors (see below), whose sum is σ = 263406528. Its totient is φ = 37628928.

The previous prime is 118897861. The next prime is 118897871. The reversal of 118897870 is 78798811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118897871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64419 + ... + 66238.

It is an arithmetic number, because the mean of its divisors is an integer number (8231454).

Almost surely, 2^118897870 is an apocalyptic number.

118897870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118897870 is an abundant number, since it is smaller than the sum of its proper divisors (144508658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118897870 is a wasteful number, since it uses less digits than its factorization.

118897870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130684.

The product of its (nonzero) digits is 225792, while the sum is 49.

The square root of 118897870 is about 10904.0299889536. The cubic root of 118897870 is about 491.7277202104.

The spelling of 118897870 in words is "one hundred eighteen million, eight hundred ninety-seven thousand, eight hundred seventy".