85706680 has 16 divisors (see below), whose sum is σ = 192840120. Its totient is φ = 34282656.

The previous prime is 85706669. The next prime is 85706693. The reversal of 85706680 is 8660758.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 2142667 = 85706680 / (8 + 5 + 7 + 0 + 6 + 6 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071294 + ... + 1071373.

Almost surely, 2^85706680 is an apocalyptic number.

It is an amenable number.

85706680 is an abundant number, since it is smaller than the sum of its proper divisors (107133440).

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

85706680 is a wasteful number, since it uses less digits than its factorization.

85706680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142678 (or 2142674 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 85706680 is about 9257.7902330956. The cubic root of 85706680 is about 440.8980967510.

The spelling of 85706680 in words is "eighty-five million, seven hundred six thousand, six hundred eighty".