6722477 has 2 divisors, whose sum is σ = 6722478. Its totient is φ = 6722476.

The previous prime is 6722473. The next prime is 6722479. The reversal of 6722477 is 7742276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5248681 + 1473796 = 2291^2 + 1214^2 .

It is a cyclic number.

It is not a de Polignac number, because 6722477 - 2² = 6722473 is a prime.

It is a super-3 number, since 3×6722477³ (a number of 21 digits) contains 333 as substring.

Together with 6722479, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 6⁸ + 7 + 2³ + 2¹³ + 4¹¹ + 7⁵ + 7⁷ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6722473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3361238 + 3361239.

It is an arithmetic number, because the mean of its divisors is an integer number (3361239).

Almost surely, 2^6722477 is an apocalyptic number.

It is an amenable number.

6722477 is a deficient number, since it is larger than the sum of its proper divisors (1).

6722477 is an equidigital number, since it uses as much as digits as its factorization.

6722477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32928, while the sum is 35.

The square root of 6722477 is about 2592.7739970927. The cubic root of 6722477 is about 188.7309423327.

The spelling of 6722477 in words is "six million, seven hundred twenty-two thousand, four hundred seventy-seven".