83980587 has 32 divisors (see below), whose sum is σ = 119347200. Its totient is φ = 52462080.

The previous prime is 83980573. The next prime is 83980597. The reversal of 83980587 is 78508938.

It is a happy number.

It is not a de Polignac number, because 83980587 - 2⁸ = 83980331 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a house number.

It is not an unprimeable number, because it can be changed into a prime (83980597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421914 + ... + 422112.

It is an arithmetic number, because the mean of its divisors is an integer number (3729600).

Almost surely, 2^83980587 is an apocalyptic number.

83980587 is a deficient number, since it is larger than the sum of its proper divisors (35366613).

83980587 is a wasteful number, since it uses less digits than its factorization.

83980587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 83980587 is about 9164.0922627394. The cubic root of 83980587 is about 437.9181734509.

The spelling of 83980587 in words is "eighty-three million, nine hundred eighty thousand, five hundred eighty-seven".