683321005 has 4 divisors (see below), whose sum is σ = 819985212. Its totient is φ = 546656800.

The previous prime is 683320999. The next prime is 683321011. The reversal of 683321005 is 500123386.

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

It is an interprime number because it is at equal distance from previous prime (683320999) and next prime (683321011).

It can be written as a sum of positive squares in 2 ways, for example, as 436768201 + 246552804 = 20899^2 + 15702^2 .

It is not a de Polignac number, because 683321005 - 2⁷ = 683320877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68332096 + ... + 68332105.

It is an arithmetic number, because the mean of its divisors is an integer number (204996303).

Almost surely, 2^683321005 is an apocalyptic number.

It is an amenable number.

683321005 is a deficient number, since it is larger than the sum of its proper divisors (136664207).

683321005 is a wasteful number, since it uses less digits than its factorization.

683321005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136664206.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 683321005 is about 26140.4094267860. The cubic root of 683321005 is about 880.7951684075.

The spelling of 683321005 in words is "six hundred eighty-three million, three hundred twenty-one thousand, five".