85690530 has 24 divisors (see below), whose sum is σ = 222795612. Its totient is φ = 22850784.

The previous prime is 85690519. The next prime is 85690547. The reversal of 85690530 is 3509658.

It can be written as a sum of positive squares in 2 ways, for example, as 84989961 + 700569 = 9219^2 + 837^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 475969 + ... + 476148.

Almost surely, 2^85690530 is an apocalyptic number.

85690530 is an abundant number, since it is smaller than the sum of its proper divisors (137105082).

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

85690530 is a wasteful number, since it uses less digits than its factorization.

85690530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952130 (or 952127 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 85690530 is about 9256.9179536172. The cubic root of 85690530 is about 440.8704017041.

The spelling of 85690530 in words is "eighty-five million, six hundred ninety thousand, five hundred thirty".