85710380 has 24 divisors (see below), whose sum is σ = 205705248. Its totient is φ = 29386368.

The previous prime is 85710371. The next prime is 85710431. The reversal of 85710380 is 8301758.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305969 + ... + 306248.

It is an arithmetic number, because the mean of its divisors is an integer number (8571052).

Almost surely, 2^85710380 is an apocalyptic number.

It is an amenable number.

85710380 is an abundant number, since it is smaller than the sum of its proper divisors (119994868).

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

85710380 is a wasteful number, since it uses less digits than its factorization.

85710380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612233 (or 612231 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 85710380 is about 9257.9900626432. The cubic root of 85710380 is about 440.9044412564.

The spelling of 85710380 in words is "eighty-five million, seven hundred ten thousand, three hundred eighty".