7216106 has 4 divisors (see below), whose sum is σ = 10824162. Its totient is φ = 3608052.

The previous prime is 7216091. The next prime is 7216129. The reversal of 7216106 is 6016127.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5564881 + 1651225 = 2359^2 + 1285^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804025 + ... + 1804028.

Almost surely, 2^7216106 is an apocalyptic number.

7216106 is a deficient number, since it is larger than the sum of its proper divisors (3608056).

7216106 is a wasteful number, since it uses less digits than its factorization.

7216106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608055.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 7216106 is about 2686.2810724122. The cubic root of 7216106 is about 193.2417527680.

The spelling of 7216106 in words is "seven million, two hundred sixteen thousand, one hundred six".