85800380 has 48 divisors (see below), whose sum is σ = 186109056. Its totient is φ = 33208320.

The previous prime is 85800367. The next prime is 85800383. The reversal of 85800380 is 8300858.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85800383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90710 + ... + 91650.

It is an arithmetic number, because the mean of its divisors is an integer number (3877272).

Almost surely, 2^85800380 is an apocalyptic number.

It is an amenable number.

85800380 is an abundant number, since it is smaller than the sum of its proper divisors (100308676).

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

85800380 is a wasteful number, since it uses less digits than its factorization.

85800380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 85800380 is about 9262.8494535969. The cubic root of 85800380 is about 441.0587108586.

The spelling of 85800380 in words is "eighty-five million, eight hundred thousand, three hundred eighty".