6722899 has 2 divisors, whose sum is σ = 6722900. Its totient is φ = 6722898.

The previous prime is 6722879. The next prime is 6722909. The reversal of 6722899 is 9982276.

It is a happy number.

6722899 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6722899 - 2¹³ = 6714707 is a prime.

6722899 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6722819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3361449 + 3361450.

It is an arithmetic number, because the mean of its divisors is an integer number (3361450).

Almost surely, 2^6722899 is an apocalyptic number.

6722899 is a deficient number, since it is larger than the sum of its proper divisors (1).

6722899 is an equidigital number, since it uses as much as digits as its factorization.

6722899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 6722899 is about 2592.8553758357. The cubic root of 6722899 is about 188.7348914123.

The spelling of 6722899 in words is "six million, seven hundred twenty-two thousand, eight hundred ninety-nine".