7684940 has 12 divisors (see below), whose sum is σ = 16138416. Its totient is φ = 3073968.

The previous prime is 7684939. The next prime is 7684951. The reversal of 7684940 is 494867.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7684894 and 7684903.

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 3 ways as a sum of consecutive naturals, for example, 192104 + ... + 192143.

It is an arithmetic number, because the mean of its divisors is an integer number (1344868).

Almost surely, 2^7684940 is an apocalyptic number.

It is an amenable number.

7684940 is an abundant number, since it is smaller than the sum of its proper divisors (8453476).

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

7684940 is a wasteful number, since it uses less digits than its factorization.

7684940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384256 (or 384254 counting only the distinct ones).

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

The square root of 7684940 is about 2772.1724333093. The cubic root of 7684940 is about 197.3392592673.

It can be divided in two parts, 76849 and 40, that multiplied together give a triangular number (3073960 = T₂₄₇₉).

The spelling of 7684940 in words is "seven million, six hundred eighty-four thousand, nine hundred forty".