115987938 has 24 divisors (see below), whose sum is σ = 254983344. Its totient is φ = 35147640.

The previous prime is 115987931. The next prime is 115987961. The reversal of 115987938 is 839789511.

It is a super-2 number, since 2×115987938² = 26906403522983688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115987931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79156 + ... + 80607.

It is an arithmetic number, because the mean of its divisors is an integer number (10624306).

Almost surely, 2^115987938 is an apocalyptic number.

115987938 is an abundant number, since it is smaller than the sum of its proper divisors (138995406).

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

115987938 is a wasteful number, since it uses less digits than its factorization.

115987938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159790 (or 159779 counting only the distinct ones).

The product of its digits is 544320, while the sum is 51.

The square root of 115987938 is about 10769.7696354193. The cubic root of 115987938 is about 487.6829913945.

The spelling of 115987938 in words is "one hundred fifteen million, nine hundred eighty-seven thousand, nine hundred thirty-eight".