7722522 has 24 divisors (see below), whose sum is σ = 17717076. Its totient is φ = 2422656.

The previous prime is 7722479. The next prime is 7722527. The reversal of 7722522 is 2252277.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7080921 + 641601 = 2661^2 + 801^2 .

It is not an unprimeable number, because it can be changed into a prime (7722527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12313 + ... + 12924.

Almost surely, 2^7722522 is an apocalyptic number.

7722522 is an abundant number, since it is smaller than the sum of its proper divisors (9994554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7722522 is a wasteful number, since it uses less digits than its factorization.

7722522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25262 (or 25259 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 7722522 is about 2778.9426046610. The cubic root of 7722522 is about 197.6604219219.

Adding to 7722522 its reverse (2252277), we get a palindrome (9974799).

The spelling of 7722522 in words is "seven million, seven hundred twenty-two thousand, five hundred twenty-two".