864896079 has 4 divisors (see below), whose sum is σ = 1153194776. Its totient is φ = 576597384.

The previous prime is 864896077. The next prime is 864896101. The reversal of 864896079 is 970698468.

864896079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 864896079 - 2¹ = 864896077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864896077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144149344 + ... + 144149349.

It is an arithmetic number, because the mean of its divisors is an integer number (288298694).

Almost surely, 2^864896079 is an apocalyptic number.

864896079 is a deficient number, since it is larger than the sum of its proper divisors (288298697).

864896079 is a wasteful number, since it uses less digits than its factorization.

864896079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288298696.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The square root of 864896079 is about 29409.1155766371. The cubic root of 864896079 is about 952.7697851810.

The spelling of 864896079 in words is "eight hundred sixty-four million, eight hundred ninety-six thousand, seventy-nine".