86765320 has 16 divisors (see below), whose sum is σ = 195222060. Its totient is φ = 34706112.

The previous prime is 86765317. The next prime is 86765321. The reversal of 86765320 is 2356768.

It can be written as a sum of positive squares in 2 ways, for example, as 86378436 + 386884 = 9294^2 + 622^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86765320.

It is not an unprimeable number, because it can be changed into a prime (86765321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084527 + ... + 1084606.

Almost surely, 2^86765320 is an apocalyptic number.

It is an amenable number.

86765320 is an abundant number, since it is smaller than the sum of its proper divisors (108456740).

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

86765320 is a wasteful number, since it uses less digits than its factorization.

86765320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169144 (or 2169140 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 86765320 is about 9314.7903894827. The cubic root of 86765320 is about 442.7059826010.

The spelling of 86765320 in words is "eighty-six million, seven hundred sixty-five thousand, three hundred twenty".