7222217637 has 4 divisors (see below), whose sum is σ = 9629623520. Its totient is φ = 4814811756.

The previous prime is 7222217617. The next prime is 7222217659. The reversal of 7222217637 is 7367122227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7222217637 - 2⁸ = 7222217381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7222217595 and 7222217604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222217617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203702937 + ... + 1203702942.

It is an arithmetic number, because the mean of its divisors is an integer number (2407405880).

Almost surely, 2^7222217637 is an apocalyptic number.

It is an amenable number.

7222217637 is a deficient number, since it is larger than the sum of its proper divisors (2407405883).

7222217637 is a wasteful number, since it uses less digits than its factorization.

7222217637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407405882.

The product of its digits is 98784, while the sum is 39.

The square root of 7222217637 is about 84983.6315827936. The cubic root of 7222217637 is about 1932.9629234850.

The spelling of 7222217637 in words is "seven billion, two hundred twenty-two million, two hundred seventeen thousand, six hundred thirty-seven".