84701985 has 16 divisors (see below), whose sum is σ = 141416064. Its totient is φ = 43210112.

The previous prime is 84701957. The next prime is 84701987. The reversal of 84701985 is 58910748.

It is a cyclic number.

It is not a de Polignac number, because 84701985 - 2⁷ = 84701857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84701987) 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 15 ways as a sum of consecutive naturals, for example, 122412 + ... + 123101.

It is an arithmetic number, because the mean of its divisors is an integer number (8838504).

Almost surely, 2^84701985 is an apocalyptic number.

It is an amenable number.

84701985 is a deficient number, since it is larger than the sum of its proper divisors (56714079).

84701985 is a wasteful number, since it uses less digits than its factorization.

84701985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245544.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 84701985 is about 9203.3681334607. The cubic root of 84701985 is about 439.1685140633.

The spelling of 84701985 in words is "eighty-four million, seven hundred one thousand, nine hundred eighty-five".