83585020 has 12 divisors (see below), whose sum is σ = 175528584. Its totient is φ = 33434000.

The previous prime is 83585017. The next prime is 83585023. The reversal of 83585020 is 2058538.

It is an interprime number because it is at equal distance from previous prime (83585017) and next prime (83585023).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83585023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089606 + ... + 2089645.

It is an arithmetic number, because the mean of its divisors is an integer number (14627382).

Almost surely, 2^83585020 is an apocalyptic number.

It is an amenable number.

83585020 is an abundant number, since it is smaller than the sum of its proper divisors (91943564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83585020 is a wasteful number, since it uses less digits than its factorization.

83585020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179260 (or 4179258 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 83585020 is about 9142.4843450782. The cubic root of 83585020 is about 437.2295275161.

The spelling of 83585020 in words is "eighty-three million, five hundred eighty-five thousand, twenty".