6997226 has 4 divisors (see below), whose sum is σ = 10495842. Its totient is φ = 3498612.

The previous prime is 6997213. The next prime is 6997229. The reversal of 6997226 is 6227996.

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 only one way, i.e., 5040025 + 1957201 = 2245^2 + 1399^2 .

It is a super-2 number, since 2×6997226² = 97922343390152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6997229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1749305 + ... + 1749308.

Almost surely, 2^6997226 is an apocalyptic number.

6997226 is a deficient number, since it is larger than the sum of its proper divisors (3498616).

6997226 is a wasteful number, since it uses less digits than its factorization.

6997226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498615.

The product of its digits is 81648, while the sum is 41.

The square root of 6997226 is about 2645.2270223934. The cubic root of 6997226 is about 191.2678460286.

The spelling of 6997226 in words is "six million, nine hundred ninety-seven thousand, two hundred twenty-six".