84400585 has 16 divisors (see below), whose sum is σ = 105445440. Its totient is φ = 64774080.

The previous prime is 84400583. The next prime is 84400609. The reversal of 84400585 is 58500448.

It is not a de Polignac number, because 84400585 - 2¹ = 84400583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84400585.

It is not an unprimeable number, because it can be changed into a prime (84400583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21850 + ... + 25420.

It is an arithmetic number, because the mean of its divisors is an integer number (6590340).

Almost surely, 2^84400585 is an apocalyptic number.

It is an amenable number.

84400585 is a deficient number, since it is larger than the sum of its proper divisors (21044855).

84400585 is a wasteful number, since it uses less digits than its factorization.

84400585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768.

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 84400585 is about 9186.9791008797. The cubic root of 84400585 is about 438.6469886925.

The spelling of 84400585 in words is "eighty-four million, four hundred thousand, five hundred eighty-five".