7644226 has 8 divisors (see below), whose sum is σ = 11861820. Its totient is φ = 3690288.

The previous prime is 7644223. The next prime is 7644229. The reversal of 7644226 is 6224467.

It is an interprime number because it is at equal distance from previous prime (7644223) and next prime (7644229).

It can be written as a sum of positive squares in 2 ways, for example, as 7155625 + 488601 = 2675^2 + 699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7644226² = 116868382278152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7644223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65841 + ... + 65956.

Almost surely, 2^7644226 is an apocalyptic number.

7644226 is a deficient number, since it is larger than the sum of its proper divisors (4217594).

7644226 is a wasteful number, since it uses less digits than its factorization.

7644226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131828.

The product of its digits is 16128, while the sum is 31.

The square root of 7644226 is about 2764.8193431036. The cubic root of 7644226 is about 196.9901478406.

The spelling of 7644226 in words is "seven million, six hundred forty-four thousand, two hundred twenty-six".