84980559 has 16 divisors (see below), whose sum is σ = 121812480. Its totient is φ = 52528320.

The previous prime is 84980557. The next prime is 84980587. The reversal of 84980559 is 95508948.

It is a happy number.

It is not a de Polignac number, because 84980559 - 2¹ = 84980557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84980557) 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, 13182 + ... + 18539.

It is an arithmetic number, because the mean of its divisors is an integer number (7613280).

Almost surely, 2^84980559 is an apocalyptic number.

84980559 is a deficient number, since it is larger than the sum of its proper divisors (36831921).

84980559 is a wasteful number, since it uses less digits than its factorization.

84980559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31790.

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 84980559 is about 9218.4900607421. The cubic root of 84980559 is about 439.6494435753.

The spelling of 84980559 in words is "eighty-four million, nine hundred eighty thousand, five hundred fifty-nine".