85850420 has 12 divisors (see below), whose sum is σ = 180285924. Its totient is φ = 34340160.

The previous prime is 85850399. The next prime is 85850441. The reversal of 85850420 is 2405858.

It is an interprime number because it is at equal distance from previous prime (85850399) and next prime (85850441).

It can be written as a sum of positive squares in 2 ways, for example, as 46185616 + 39664804 = 6796^2 + 6298^2 .

It is a super-2 number, since 2×85850420² = 14740589228352800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2146241 + ... + 2146280.

It is an arithmetic number, because the mean of its divisors is an integer number (15023827).

Almost surely, 2^85850420 is an apocalyptic number.

It is an amenable number.

85850420 is an abundant number, since it is smaller than the sum of its proper divisors (94435504).

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

85850420 is a wasteful number, since it uses less digits than its factorization.

85850420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292530 (or 4292528 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 85850420 is about 9265.5501725478. The cubic root of 85850420 is about 441.1444380961.

The spelling of 85850420 in words is "eighty-five million, eight hundred fifty thousand, four hundred twenty".