864095387 has 4 divisors (see below), whose sum is σ = 868481856. Its totient is φ = 859708920.

The previous prime is 864095381. The next prime is 864095389. The reversal of 864095387 is 783590468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 864095387 - 2⁴ = 864095371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864095381) 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 3 ways as a sum of consecutive naturals, for example, 2192939 + ... + 2193332.

It is an arithmetic number, because the mean of its divisors is an integer number (217120464).

Almost surely, 2^864095387 is an apocalyptic number.

864095387 is a deficient number, since it is larger than the sum of its proper divisors (4386469).

864095387 is a wasteful number, since it uses less digits than its factorization.

864095387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386468.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 864095387 is about 29395.4994344372. The cubic root of 864095387 is about 952.4756802208.

The spelling of 864095387 in words is "eight hundred sixty-four million, ninety-five thousand, three hundred eighty-seven".