6722999 has 4 divisors (see below), whose sum is σ = 6776064. Its totient is φ = 6669936.

The previous prime is 6722987. The next prime is 6723023. The reversal of 6722999 is 9992276.

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 6722999 - 2⁸ = 6722743 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 (6722909) 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, 26342 + ... + 26595.

It is an arithmetic number, because the mean of its divisors is an integer number (1694016).

Almost surely, 2^6722999 is an apocalyptic number.

6722999 is a deficient number, since it is larger than the sum of its proper divisors (53065).

6722999 is a wasteful number, since it uses less digits than its factorization.

6722999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53064.

The product of its digits is 122472, while the sum is 44.

The square root of 6722999 is about 2592.8746595237. The cubic root of 6722999 is about 188.7358271890.

The spelling of 6722999 in words is "six million, seven hundred twenty-two thousand, nine hundred ninety-nine".