7200922 has 4 divisors (see below), whose sum is σ = 10801386. Its totient is φ = 3600460.

The previous prime is 7200913. The next prime is 7200923. The reversal of 7200922 is 2290027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2290027 = 457 ⋅5011.

It can be written as a sum of positive squares in only one way, i.e., 4036081 + 3164841 = 2009^2 + 1779^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7200893 and 7200902.

It is not an unprimeable number, because it can be changed into a prime (7200923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1800229 + ... + 1800232.

Almost surely, 2^7200922 is an apocalyptic number.

7200922 is a deficient number, since it is larger than the sum of its proper divisors (3600464).

7200922 is a wasteful number, since it uses less digits than its factorization.

7200922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600463.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7200922 is about 2683.4533720562. The cubic root of 7200922 is about 193.1061189880.

Adding to 7200922 its reverse (2290027), we get a palindrome (9490949).

The spelling of 7200922 in words is "seven million, two hundred thousand, nine hundred twenty-two".