85767580 has 24 divisors (see below), whose sum is σ = 180704160. Its totient is φ = 34194240.

The previous prime is 85767569. The next prime is 85767589. The reversal of 85767580 is 8576758.

It is a self number, because there is not a number n which added to its sum of digits gives 85767580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85767589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675 + ... + 13114.

It is an arithmetic number, because the mean of its divisors is an integer number (7529340).

Almost surely, 2^85767580 is an apocalyptic number.

It is an amenable number.

85767580 is an abundant number, since it is smaller than the sum of its proper divisors (94936580).

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

85767580 is a wasteful number, since it uses less digits than its factorization.

85767580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14109 (or 14107 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 85767580 is about 9261.0787708560. The cubic root of 85767580 is about 441.0025006586.

The spelling of 85767580 in words is "eighty-five million, seven hundred sixty-seven thousand, five hundred eighty".