7922216 has 8 divisors (see below), whose sum is σ = 14854170. Its totient is φ = 3961104.

The previous prime is 7922209. The next prime is 7922219. The reversal of 7922216 is 6122297.

It can be written as a sum of positive squares in only one way, i.e., 5808100 + 2114116 = 2410^2 + 1454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (7922219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495131 + ... + 495146.

Almost surely, 2^7922216 is an apocalyptic number.

It is an amenable number.

7922216 is a deficient number, since it is larger than the sum of its proper divisors (6931954).

7922216 is a wasteful number, since it uses less digits than its factorization.

7922216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990283 (or 990279 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 7922216 is about 2814.6431390143. The cubic root of 7922216 is about 199.3496877618.

The spelling of 7922216 in words is "seven million, nine hundred twenty-two thousand, two hundred sixteen".