83987084 has 24 divisors (see below), whose sum is σ = 152478480. Its totient is φ = 40449024.

The previous prime is 83987083. The next prime is 83987117. The reversal of 83987084 is 48078938.

It is not an unprimeable number, because it can be changed into a prime (83987081) 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, 9212 + ... + 15900.

It is an arithmetic number, because the mean of its divisors is an integer number (6353270).

Almost surely, 2^83987084 is an apocalyptic number.

It is an amenable number.

83987084 is a deficient number, since it is larger than the sum of its proper divisors (68491396).

83987084 is a wasteful number, since it uses less digits than its factorization.

83987084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809 (or 6807 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 83987084 is about 9164.4467372559. The cubic root of 83987084 is about 437.9294660647.

The spelling of 83987084 in words is "eighty-three million, nine hundred eighty-seven thousand, eighty-four".