6722278 has 16 divisors (see below), whose sum is σ = 10480176. Its totient is φ = 3231360.

The previous prime is 6722273. The next prime is 6722291. The reversal of 6722278 is 8722276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5425 + ... + 6547.

It is an arithmetic number, because the mean of its divisors is an integer number (655011).

Almost surely, 2^6722278 is an apocalyptic number.

6722278 is a deficient number, since it is larger than the sum of its proper divisors (3757898).

6722278 is a wasteful number, since it uses less digits than its factorization.

6722278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239.

The product of its digits is 18816, while the sum is 34.

The square root of 6722278 is about 2592.7356209224. The cubic root of 6722278 is about 188.7290800316.

The spelling of 6722278 in words is "six million, seven hundred twenty-two thousand, two hundred seventy-eight".