85509710 has 32 divisors (see below), whose sum is σ = 180829152. Its totient is φ = 28702080.

The previous prime is 85509689. The next prime is 85509713. The reversal of 85509710 is 1790558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85509713) 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, 28469 + ... + 31328.

It is an arithmetic number, because the mean of its divisors is an integer number (5650911).

Almost surely, 2^85509710 is an apocalyptic number.

85509710 is an abundant number, since it is smaller than the sum of its proper divisors (95319442).

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

85509710 is a wasteful number, since it uses less digits than its factorization.

85509710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59828.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 85509710 is about 9247.1460462134. The cubic root of 85509710 is about 440.5600822155.

The spelling of 85509710 in words is "eighty-five million, five hundred nine thousand, seven hundred ten".