86509320 has 64 divisors (see below), whose sum is σ = 268488000. Its totient is φ = 22272768.

The previous prime is 86509309. The next prime is 86509327. The reversal of 86509320 is 2390568.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (86509327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8950 + ... + 15909.

It is an arithmetic number, because the mean of its divisors is an integer number (4195125).

Almost surely, 2^86509320 is an apocalyptic number.

It is an amenable number.

86509320 is an abundant number, since it is smaller than the sum of its proper divisors (181978680).

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

86509320 is a wasteful number, since it uses less digits than its factorization.

86509320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24902 (or 24898 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 86509320 is about 9301.0386516776. The cubic root of 86509320 is about 442.2701541813.

Adding to 86509320 its reverse (2390568), we get a palindrome (88899888).

The spelling of 86509320 in words is "eighty-six million, five hundred nine thousand, three hundred twenty".