118860989 has 8 divisors (see below), whose sum is σ = 128556792. Its totient is φ = 109244160.

The previous prime is 118860961. The next prime is 118860997. The reversal of 118860989 is 989068811.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1138489 + 117722500 = 1067^2 + 10850^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118860989 - 2⁸ = 118860733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118860949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16592 + ... + 22649.

It is an arithmetic number, because the mean of its divisors is an integer number (16069599).

Almost surely, 2^118860989 is an apocalyptic number.

It is an amenable number.

118860989 is a deficient number, since it is larger than the sum of its proper divisors (9695803).

118860989 is a wasteful number, since it uses less digits than its factorization.

118860989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39487.

The product of its (nonzero) digits is 248832, while the sum is 50.

The square root of 118860989 is about 10902.3386940601. The cubic root of 118860989 is about 491.6768718492.

The spelling of 118860989 in words is "one hundred eighteen million, eight hundred sixty thousand, nine hundred eighty-nine".