7222794637 has 4 divisors (see below), whose sum is σ = 7224815196. Its totient is φ = 7220774080.

The previous prime is 7222794629. The next prime is 7222794671. The reversal of 7222794637 is 7364972227.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7364972227 = 22697 ⋅324491.

It can be written as a sum of positive squares in 2 ways, for example, as 4479758761 + 2743035876 = 66931^2 + 52374^2 .

It is a cyclic number.

It is not a de Polignac number, because 7222794637 - 2³ = 7222794629 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222734637) 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, 1004908 + ... + 1012069.

It is an arithmetic number, because the mean of its divisors is an integer number (1806203799).

Almost surely, 2^7222794637 is an apocalyptic number.

It is an amenable number.

7222794637 is a deficient number, since it is larger than the sum of its proper divisors (2020559).

7222794637 is a wasteful number, since it uses less digits than its factorization.

7222794637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020558.

The product of its digits is 1778112, while the sum is 49.

The square root of 7222794637 is about 84987.0262863691. The cubic root of 7222794637 is about 1933.0143984364.

The spelling of 7222794637 in words is "seven billion, two hundred twenty-two million, seven hundred ninety-four thousand, six hundred thirty-seven".