6722194 has 4 divisors (see below), whose sum is σ = 10083294. Its totient is φ = 3361096.

The previous prime is 6722173. The next prime is 6722207. The reversal of 6722194 is 4912276.

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

It can be written as a sum of positive squares in only one way, i.e., 5938969 + 783225 = 2437^2 + 885^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680547 + ... + 1680550.

Almost surely, 2^6722194 is an apocalyptic number.

6722194 is a deficient number, since it is larger than the sum of its proper divisors (3361100).

6722194 is a wasteful number, since it uses less digits than its factorization.

6722194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361099.

The product of its digits is 6048, while the sum is 31.

The square root of 6722194 is about 2592.7194217655. The cubic root of 6722194 is about 188.7282939237.

The spelling of 6722194 in words is "six million, seven hundred twenty-two thousand, one hundred ninety-four".