85293820 has 12 divisors (see below), whose sum is σ = 179117064. Its totient is φ = 34117520.

The previous prime is 85293787. The next prime is 85293833. The reversal of 85293820 is 2839258.

It is a self number, because there is not a number n which added to its sum of digits gives 85293820.

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, 2132326 + ... + 2132365.

It is an arithmetic number, because the mean of its divisors is an integer number (14926422).

Almost surely, 2^85293820 is an apocalyptic number.

It is an amenable number.

85293820 is an abundant number, since it is smaller than the sum of its proper divisors (93823244).

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

85293820 is a wasteful number, since it uses less digits than its factorization.

85293820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264700 (or 4264698 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 85293820 is about 9235.4653374911. The cubic root of 85293820 is about 440.1890028239.

The spelling of 85293820 in words is "eighty-five million, two hundred ninety-three thousand, eight hundred twenty".