7680638 has 16 divisors (see below), whose sum is σ = 13353984. Its totient is φ = 3244920.

The previous prime is 7680637. The next prime is 7680649. The reversal of 7680638 is 8360867.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7680637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2870 + ... + 4857.

It is an arithmetic number, because the mean of its divisors is an integer number (834624).

Almost surely, 2^7680638 is an apocalyptic number.

7680638 is a deficient number, since it is larger than the sum of its proper divisors (5673346).

7680638 is a wasteful number, since it uses less digits than its factorization.

7680638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7807.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 7680638 is about 2771.3963989296. The cubic root of 7680638 is about 197.3024291400.

The spelling of 7680638 in words is "seven million, six hundred eighty thousand, six hundred thirty-eight".