82987916 has 24 divisors (see below), whose sum is σ = 159921216. Its totient is φ = 37367120.

The previous prime is 82987909. The next prime is 82987921. The reversal of 82987916 is 61978928.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4106 + ... + 13521.

It is an arithmetic number, because the mean of its divisors is an integer number (6663384).

Almost surely, 2^82987916 is an apocalyptic number.

It is an amenable number.

82987916 is a deficient number, since it is larger than the sum of its proper divisors (76933300).

82987916 is a wasteful number, since it uses less digits than its factorization.

82987916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17749 (or 17747 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

The square root of 82987916 is about 9109.7703593450. The cubic root of 82987916 is about 436.1858969365.

The spelling of 82987916 in words is "eighty-two million, nine hundred eighty-seven thousand, nine hundred sixteen".