86495409 has 48 divisors (see below), whose sum is σ = 167766144. Its totient is φ = 41472000.

The previous prime is 86495393. The next prime is 86495419. The reversal of 86495409 is 90459468.

It is a happy number.

It is not a de Polignac number, because 86495409 - 2⁴ = 86495393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86495419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4209 + ... + 13809.

It is an arithmetic number, because the mean of its divisors is an integer number (3495128).

Almost surely, 2^86495409 is an apocalyptic number.

It is an amenable number.

86495409 is a deficient number, since it is larger than the sum of its proper divisors (81270735).

86495409 is a wasteful number, since it uses less digits than its factorization.

86495409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9638 (or 9635 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 86495409 is about 9300.2908019051. The cubic root of 86495409 is about 442.2464467168.

The spelling of 86495409 in words is "eighty-six million, four hundred ninety-five thousand, four hundred nine".