864092505 has 16 divisors (see below), whose sum is σ = 1385766144. Its totient is φ = 459776640.

The previous prime is 864092491. The next prime is 864092519. The reversal of 864092505 is 505290468.

It is an interprime number because it is at equal distance from previous prime (864092491) and next prime (864092519).

It is not a de Polignac number, because 864092505 - 2¹⁸ = 863830361 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60364 + ... + 73293.

It is an arithmetic number, because the mean of its divisors is an integer number (86610384).

Almost surely, 2^864092505 is an apocalyptic number.

It is an amenable number.

864092505 is a deficient number, since it is larger than the sum of its proper divisors (521673639).

864092505 is a wasteful number, since it uses less digits than its factorization.

864092505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134096.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 864092505 is about 29395.4504132867. The cubic root of 864092505 is about 952.4746212953.

The spelling of 864092505 in words is "eight hundred sixty-four million, ninety-two thousand, five hundred five".