7665216 has 112 divisors (see below), whose sum is σ = 22701504. Its totient is φ = 2267136.

The previous prime is 7665197. The next prime is 7665239. The reversal of 7665216 is 6125667.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92311 + ... + 92393.

It is an arithmetic number, because the mean of its divisors is an integer number (202692).

Almost surely, 2^7665216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7665216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11350752).

7665216 is an abundant number, since it is smaller than the sum of its proper divisors (15036288).

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

7665216 is a wasteful number, since it uses less digits than its factorization.

7665216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 138 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 7665216 is about 2768.6126489634. The cubic root of 7665216 is about 197.1702857387.

The spelling of 7665216 in words is "seven million, six hundred sixty-five thousand, two hundred sixteen".