864373747 has 4 divisors (see below), whose sum is σ = 868899456. Its totient is φ = 859848040.

The previous prime is 864373729. The next prime is 864373771. The reversal of 864373747 is 747373468.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-864373747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 864373747.

It is not an unprimeable number, because it can be changed into a prime (864374747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2262568 + ... + 2262949.

It is an arithmetic number, because the mean of its divisors is an integer number (217224864).

Almost surely, 2^864373747 is an apocalyptic number.

864373747 is a deficient number, since it is larger than the sum of its proper divisors (4525709).

864373747 is a wasteful number, since it uses less digits than its factorization.

864373747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525708.

The product of its digits is 2370816, while the sum is 49.

The square root of 864373747 is about 29400.2337915874. The cubic root of 864373747 is about 952.5779461934.

The spelling of 864373747 in words is "eight hundred sixty-four million, three hundred seventy-three thousand, seven hundred forty-seven".