118293986 has 16 divisors (see below), whose sum is σ = 181174968. Its totient is φ = 57907200.

The previous prime is 118293977. The next prime is 118294003. The reversal of 118293986 is 689392811.

It can be written as a sum of positive squares in 4 ways, for example, as 98624761 + 19669225 = 9931^2 + 4435^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 118293986.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67076 + ... + 68816.

Almost surely, 2^118293986 is an apocalyptic number.

118293986 is a deficient number, since it is larger than the sum of its proper divisors (62880982).

118293986 is a wasteful number, since it uses less digits than its factorization.

118293986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437.

The product of its digits is 186624, while the sum is 47.

The square root of 118293986 is about 10876.3038758578. The cubic root of 118293986 is about 490.8938093988.

The spelling of 118293986 in words is "one hundred eighteen million, two hundred ninety-three thousand, nine hundred eighty-six".