115573987 has 8 divisors (see below), whose sum is σ = 118573056. Its totient is φ = 112597512.

The previous prime is 115573963. The next prime is 115573999. The reversal of 115573987 is 789375511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115573987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115573907) 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, 4968 + ... + 15994.

It is an arithmetic number, because the mean of its divisors is an integer number (14821632).

Almost surely, 2^115573987 is an apocalyptic number.

115573987 is a deficient number, since it is larger than the sum of its proper divisors (2999069).

115573987 is a wasteful number, since it uses less digits than its factorization.

115573987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11297.

The product of its digits is 264600, while the sum is 46.

The square root of 115573987 is about 10750.5342657935. The cubic root of 115573987 is about 487.1021335825.

The spelling of 115573987 in words is "one hundred fifteen million, five hundred seventy-three thousand, nine hundred eighty-seven".