7998226 has 4 divisors (see below), whose sum is σ = 11997342. Its totient is φ = 3999112.

The previous prime is 7998223. The next prime is 7998269. The reversal of 7998226 is 6228997.

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., 6786025 + 1212201 = 2605^2 + 1101^2 .

It is not an unprimeable number, because it can be changed into a prime (7998223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999555 + ... + 1999558.

Almost surely, 2^7998226 is an apocalyptic number.

7998226 is a deficient number, since it is larger than the sum of its proper divisors (3999116).

7998226 is a wasteful number, since it uses less digits than its factorization.

7998226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999115.

The product of its digits is 108864, while the sum is 43.

The square root of 7998226 is about 2828.1135055015. The cubic root of 7998226 is about 199.9852155738.

It can be divided in two parts, 79982 and 26, that added together give a palindrome (80008).

The spelling of 7998226 in words is "seven million, nine hundred ninety-eight thousand, two hundred twenty-six".