118991698 has 48 divisors (see below), whose sum is σ = 216999000. Its totient is φ = 48733440.

The previous prime is 118991693. The next prime is 118991749. The reversal of 118991698 is 896199811.

It can be written as a sum of positive squares in 4 ways, for example, as 90763729 + 28227969 = 9527^2 + 5313^2 .

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118991693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423318 + ... + 423598.

Almost surely, 2^118991698 is an apocalyptic number.

118991698 is a deficient number, since it is larger than the sum of its proper divisors (98007302).

118991698 is a wasteful number, since it uses less digits than its factorization.

118991698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 468 counting only the distinct ones).

The product of its digits is 279936, while the sum is 52.

The square root of 118991698 is about 10908.3315864526. The cubic root of 118991698 is about 491.8570348267.

The spelling of 118991698 in words is "one hundred eighteen million, nine hundred ninety-one thousand, six hundred ninety-eight".