116986987 has 16 divisors (see below), whose sum is σ = 128348640. Its totient is φ = 105984000.

The previous prime is 116986951. The next prime is 116986999. The reversal of 116986987 is 789689611.

It is a cyclic number.

It is not a de Polignac number, because 116986987 - 2¹⁵ = 116954219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116986937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182187 + ... + 182827.

It is an arithmetic number, because the mean of its divisors is an integer number (8021790).

Almost surely, 2^116986987 is an apocalyptic number.

116986987 is a deficient number, since it is larger than the sum of its proper divisors (11361653).

116986987 is a wasteful number, since it uses less digits than its factorization.

116986987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894.

The product of its digits is 1306368, while the sum is 55.

The square root of 116986987 is about 10816.0522835275. The cubic root of 116986987 is about 489.0791911481.

The spelling of 116986987 in words is "one hundred sixteen million, nine hundred eighty-six thousand, nine hundred eighty-seven".