6722494 has 4 divisors (see below), whose sum is σ = 10083744. Its totient is φ = 3361246.

The previous prime is 6722479. The next prime is 6722537. The reversal of 6722494 is 4942276.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680622 + ... + 1680625.

It is an arithmetic number, because the mean of its divisors is an integer number (2520936).

Almost surely, 2^6722494 is an apocalyptic number.

6722494 is a deficient number, since it is larger than the sum of its proper divisors (3361250).

6722494 is a wasteful number, since it uses less digits than its factorization.

6722494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361249.

The product of its digits is 24192, while the sum is 34.

The square root of 6722494 is about 2592.7772754327. Note that the first 3 decimals coincide. The cubic root of 6722494 is about 188.7311014220.

It can be divided in two parts, 6 and 722494, that added together give a square (722500 = 850²).

The spelling of 6722494 in words is "six million, seven hundred twenty-two thousand, four hundred ninety-four".