7722248 has 16 divisors (see below), whose sum is σ = 14513580. Its totient is φ = 3851968.

The previous prime is 7722229. The next prime is 7722251. The reversal of 7722248 is 8422277.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7171684 + 550564 = 2678^2 + 742^2 .

It is a super-2 number, since 2×7722248² = 119266228347008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3590 + ... + 5322.

Almost surely, 2^7722248 is an apocalyptic number.

It is an amenable number.

7722248 is a deficient number, since it is larger than the sum of its proper divisors (6791332).

7722248 is a wasteful number, since it uses less digits than its factorization.

7722248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296 (or 2292 counting only the distinct ones).

The product of its digits is 12544, while the sum is 32.

The square root of 7722248 is about 2778.8933048968. The cubic root of 7722248 is about 197.6580841883.

The spelling of 7722248 in words is "seven million, seven hundred twenty-two thousand, two hundred forty-eight".