683322991 has 4 divisors (see below), whose sum is σ = 735886312. Its totient is φ = 630759672.

The previous prime is 683322967. The next prime is 683323009. The reversal of 683322991 is 199223386.

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

It is a cyclic number.

It is not a de Polignac number, because 683322991 - 2¹³ = 683314799 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 (683322931) 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, 26281641 + ... + 26281666.

It is an arithmetic number, because the mean of its divisors is an integer number (183971578).

Almost surely, 2^683322991 is an apocalyptic number.

683322991 is a deficient number, since it is larger than the sum of its proper divisors (52563321).

683322991 is a wasteful number, since it uses less digits than its factorization.

683322991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52563320.

The product of its digits is 139968, while the sum is 43.

The square root of 683322991 is about 26140.4474139216. The cubic root of 683322991 is about 880.7960217192.

The spelling of 683322991 in words is "six hundred eighty-three million, three hundred twenty-two thousand, nine hundred ninety-one".