7216938 has 20 divisors (see below), whose sum is σ = 16171650. Its totient is φ = 2405592.

The previous prime is 7216931. The next prime is 7216967. The reversal of 7216938 is 8396127.

It can be written as a sum of positive squares in only one way, i.e., 6953769 + 263169 = 2637^2 + 513^2 .

It is not an unprimeable number, because it can be changed into a prime (7216931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 22113 + ... + 22436.

Almost surely, 2^7216938 is an apocalyptic number.

7216938 is an abundant number, since it is smaller than the sum of its proper divisors (8954712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7216938 is a wasteful number, since it uses less digits than its factorization.

7216938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44563 (or 44554 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 7216938 is about 2686.4359288842. The cubic root of 7216938 is about 193.2491792553.

The spelling of 7216938 in words is "seven million, two hundred sixteen thousand, nine hundred thirty-eight".