6823997 has 4 divisors (see below), whose sum is σ = 6843900. Its totient is φ = 6804096.

The previous prime is 6823991. The next prime is 6824003. The reversal of 6823997 is 7993286.

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 (6823991) and next prime (6824003).

It can be written as a sum of positive squares in 2 ways, for example, as 5410276 + 1413721 = 2326^2 + 1189^2 .

It is a cyclic number.

It is not a de Polignac number, because 6823997 - 2⁶ = 6823933 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 (6823991) 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, 9428 + ... + 10125.

It is an arithmetic number, because the mean of its divisors is an integer number (1710975).

Almost surely, 2^6823997 is an apocalyptic number.

It is an amenable number.

6823997 is a deficient number, since it is larger than the sum of its proper divisors (19903).

6823997 is a wasteful number, since it uses less digits than its factorization.

6823997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19902.

The product of its digits is 163296, while the sum is 44.

The square root of 6823997 is about 2612.2781245495. The cubic root of 6823997 is about 189.6762445791.

The spelling of 6823997 in words is "six million, eight hundred twenty-three thousand, nine hundred ninety-seven".