7216768 has 32 divisors (see below), whose sum is σ = 15486660. Its totient is φ = 3330048.

The previous prime is 7216763. The next prime is 7216787. The reversal of 7216768 is 8676127.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5345344 + 1871424 = 2312^2 + 1368^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (7216763) 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, 505 + ... + 3832.

Almost surely, 2^7216768 is an apocalyptic number.

It is an amenable number.

7216768 is an abundant number, since it is smaller than the sum of its proper divisors (8269892).

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

7216768 is a wasteful number, since it uses less digits than its factorization.

7216768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364 (or 4352 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 7216768 is about 2686.4042882634. The cubic root of 7216768 is about 193.2476618704.

The spelling of 7216768 in words is "seven million, two hundred sixteen thousand, seven hundred sixty-eight".