85709308 has 18 divisors (see below), whose sum is σ = 159335456. Its totient is φ = 40333248.

The previous prime is 85709303. The next prime is 85709329. The reversal of 85709308 is 80390758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85709303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35916 + ... + 38227.

Almost surely, 2^85709308 is an apocalyptic number.

It is an amenable number.

85709308 is a deficient number, since it is larger than the sum of its proper divisors (73626148).

85709308 is a wasteful number, since it uses less digits than its factorization.

85709308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74181 (or 74162 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 85709308 is about 9257.9321665262. The cubic root of 85709308 is about 440.9026030833.

The spelling of 85709308 in words is "eighty-five million, seven hundred nine thousand, three hundred eight".