87736986 has 32 divisors (see below), whose sum is σ = 195307200. Its totient is φ = 29195280.

The previous prime is 87736981. The next prime is 87737009. The reversal of 87736986 is 68963778.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (87736981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43345 + ... + 45323.

It is an arithmetic number, because the mean of its divisors is an integer number (6103350).

Almost surely, 2^87736986 is an apocalyptic number.

87736986 is an abundant number, since it is smaller than the sum of its proper divisors (107570214).

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

87736986 is a wasteful number, since it uses less digits than its factorization.

87736986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811 (or 2805 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 87736986 is about 9366.8023359095. The cubic root of 87736986 is about 444.3524411272.

The spelling of 87736986 in words is "eighty-seven million, seven hundred thirty-six thousand, nine hundred eighty-six".