85020983 has 4 divisors (see below), whose sum is σ = 86185728. Its totient is φ = 83856240.

The previous prime is 85020977. The next prime is 85021033. The reversal of 85020983 is 38902058.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85020983 - 2⁶ = 85020919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85020913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582263 + ... + 582408.

It is an arithmetic number, because the mean of its divisors is an integer number (21546432).

Almost surely, 2^85020983 is an apocalyptic number.

85020983 is a deficient number, since it is larger than the sum of its proper divisors (1164745).

85020983 is a wasteful number, since it uses less digits than its factorization.

85020983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164744.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 85020983 is about 9220.6823500216. The cubic root of 85020983 is about 439.7191441125.

The spelling of 85020983 in words is "eighty-five million, twenty thousand, nine hundred eighty-three".