84985901 has 32 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 60050880.

The previous prime is 84985891. The next prime is 84985913. The reversal of 84985901 is 10958948.

It is a cyclic number.

It is not a de Polignac number, because 84985901 - 2¹⁴ = 84969517 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84985981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58340 + ... + 59778.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 2^84985901 is an apocalyptic number.

It is an amenable number.

84985901 is a deficient number, since it is larger than the sum of its proper divisors (31135699).

84985901 is a wasteful number, since it uses less digits than its factorization.

84985901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 84985901 is about 9218.7797999518. The cubic root of 84985901 is about 439.6586557141.

The spelling of 84985901 in words is "eighty-four million, nine hundred eighty-five thousand, nine hundred one".