7684938 has 12 divisors (see below), whose sum is σ = 16650738. Its totient is φ = 2561640.

The previous prime is 7684903. The next prime is 7684939. The reversal of 7684938 is 8394867.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5602689 + 2082249 = 2367^2 + 1443^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7684893 and 7684902.

It is not an unprimeable number, because it can be changed into a prime (7684939) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 213453 + ... + 213488.

Almost surely, 2^7684938 is an apocalyptic number.

7684938 is an abundant number, since it is smaller than the sum of its proper divisors (8965800).

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

7684938 is a wasteful number, since it uses less digits than its factorization.

7684938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426949 (or 426946 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7684938 is about 2772.1720725814. The cubic root of 7684938 is about 197.3392421482.

The spelling of 7684938 in words is "seven million, six hundred eighty-four thousand, nine hundred thirty-eight".