6722869 has 2 divisors, whose sum is σ = 6722870. Its totient is φ = 6722868.

The previous prime is 6722861. The next prime is 6722879. The reversal of 6722869 is 9682276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5130225 + 1592644 = 2265^2 + 1262^2 .

It is a cyclic number.

It is not a de Polignac number, because 6722869 - 2³ = 6722861 is a prime.

It is a super-2 number, since 2×6722869² = 90393935182322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6722861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3361434 + 3361435.

It is an arithmetic number, because the mean of its divisors is an integer number (3361435).

Almost surely, 2^6722869 is an apocalyptic number.

It is an amenable number.

6722869 is a deficient number, since it is larger than the sum of its proper divisors (1).

6722869 is an equidigital number, since it uses as much as digits as its factorization.

6722869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 6722869 is about 2592.8495907013. The cubic root of 6722869 is about 188.7346106775.

The spelling of 6722869 in words is "six million, seven hundred twenty-two thousand, eight hundred sixty-nine".