6722039 has 2 divisors, whose sum is σ = 6722040. Its totient is φ = 6722038.

The previous prime is 6721999. The next prime is 6722057. The reversal of 6722039 is 9302276.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6722039 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6722069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3361019 + 3361020.

It is an arithmetic number, because the mean of its divisors is an integer number (3361020).

Almost surely, 2^6722039 is an apocalyptic number.

6722039 is a deficient number, since it is larger than the sum of its proper divisors (1).

6722039 is an equidigital number, since it uses as much as digits as its factorization.

6722039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 6722039 is about 2592.6895301983. The cubic root of 6722039 is about 188.7268433501.

The spelling of 6722039 in words is "six million, seven hundred twenty-two thousand, thirty-nine".