86695780 has 24 divisors (see below), whose sum is σ = 185149440. Its totient is φ = 34090080.

The previous prime is 86695753. The next prime is 86695781. The reversal of 86695780 is 8759668.

It is not an unprimeable number, because it can be changed into a prime (86695781) 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, 35556 + ... + 37915.

It is an arithmetic number, because the mean of its divisors is an integer number (7714560).

Almost surely, 2^86695780 is an apocalyptic number.

It is an amenable number.

86695780 is an abundant number, since it is smaller than the sum of its proper divisors (98453660).

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

86695780 is a wasteful number, since it uses less digits than its factorization.

86695780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73539 (or 73537 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 86695780 is about 9311.0568680467. The cubic root of 86695780 is about 442.5876787966.

The spelling of 86695780 in words is "eighty-six million, six hundred ninety-five thousand, seven hundred eighty".