683333389 has 4 divisors (see below), whose sum is σ = 685165756. Its totient is φ = 681501024.

The previous prime is 683333311. The next prime is 683333447. The reversal of 683333389 is 983333386.

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

It can be written as a sum of positive squares in 2 ways, for example, as 244766025 + 438567364 = 15645^2 + 20942^2 .

It is a cyclic number.

It is not a de Polignac number, because 683333389 - 2¹⁵ = 683300621 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 (683333089) 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, 915624 + ... + 916369.

It is an arithmetic number, because the mean of its divisors is an integer number (171291439).

Almost surely, 2^683333389 is an apocalyptic number.

It is an amenable number.

683333389 is a deficient number, since it is larger than the sum of its proper divisors (1832367).

683333389 is a wasteful number, since it uses less digits than its factorization.

683333389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832366.

The product of its digits is 839808, while the sum is 46.

The square root of 683333389 is about 26140.6463003500. The cubic root of 683333389 is about 880.8004893335.

The spelling of 683333389 in words is "six hundred eighty-three million, three hundred thirty-three thousand, three hundred eighty-nine".