7663320 has 96 divisors (see below), whose sum is σ = 28473120. Its totient is φ = 1751040.

The previous prime is 7663319. The next prime is 7663343. The reversal of 7663320 is 233667.

7663320 is a `hidden beast` number, since 7 + 6 + 633 + 20 = 666.

7663320 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1000 + ... + 4040.

It is an arithmetic number, because the mean of its divisors is an integer number (296595).

Almost surely, 2^7663320 is an apocalyptic number.

7663320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7663320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14236560).

7663320 is an abundant number, since it is smaller than the sum of its proper divisors (20809800).

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

7663320 is a wasteful number, since it uses less digits than its factorization.

7663320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065 (or 3058 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 7663320 is about 2768.2702180242. The cubic root of 7663320 is about 197.1540276324.

Adding to 7663320 its reverse (233667), we get a palindrome (7896987).

The spelling of 7663320 in words is "seven million, six hundred sixty-three thousand, three hundred twenty".