85670580 has 24 divisors (see below), whose sum is σ = 239877792. Its totient is φ = 22845472.

The previous prime is 85670573. The next prime is 85670617. The reversal of 85670580 is 8507658.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 713862 + ... + 713981.

It is an arithmetic number, because the mean of its divisors is an integer number (9994908).

Almost surely, 2^85670580 is an apocalyptic number.

It is an amenable number.

85670580 is an abundant number, since it is smaller than the sum of its proper divisors (154207212).

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

85670580 is a wasteful number, since it uses less digits than its factorization.

85670580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427855 (or 1427853 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 85670580 is about 9255.8403184152. The cubic root of 85670580 is about 440.8361853709.

The spelling of 85670580 in words is "eighty-five million, six hundred seventy thousand, five hundred eighty".