6722437 has 4 divisors (see below), whose sum is σ = 6798060. Its totient is φ = 6646816.

The previous prime is 6722423. The next prime is 6722473. The reversal of 6722437 is 7342276.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2825761 + 3896676 = 1681^2 + 1974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6722437 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 7⁴ + 2¹⁷ + 2¹⁹ + 4⁴ + 3⁹ + 7⁸ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6722399 and 6722408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37678 + ... + 37855.

It is an arithmetic number, because the mean of its divisors is an integer number (1699515).

Almost surely, 2^6722437 is an apocalyptic number.

It is an amenable number.

6722437 is a deficient number, since it is larger than the sum of its proper divisors (75623).

6722437 is an equidigital number, since it uses as much as digits as its factorization.

6722437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75622.

The product of its digits is 14112, while the sum is 31.

The square root of 6722437 is about 2592.7662833352. The cubic root of 6722437 is about 188.7305680038.

The spelling of 6722437 in words is "six million, seven hundred twenty-two thousand, four hundred thirty-seven".