864733613 has 4 divisors (see below), whose sum is σ = 864807360. Its totient is φ = 864659868.

The previous prime is 864733609. The next prime is 864733627. The reversal of 864733613 is 316337468.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 864733613 - 2² = 864733609 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 (864733603) 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, 14933 + ... + 44186.

It is an arithmetic number, because the mean of its divisors is an integer number (216201840).

Almost surely, 2^864733613 is an apocalyptic number.

It is an amenable number.

864733613 is a deficient number, since it is larger than the sum of its proper divisors (73747).

864733613 is a wasteful number, since it uses less digits than its factorization.

864733613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73746.

The product of its digits is 217728, while the sum is 41.

The square root of 864733613 is about 29406.3532761205. The cubic root of 864733613 is about 952.7101239134.

The spelling of 864733613 in words is "eight hundred sixty-four million, seven hundred thirty-three thousand, six hundred thirteen".