7681984 has 28 divisors (see below), whose sum is σ = 15773400. Its totient is φ = 3707648.

The previous prime is 7681969. The next prime is 7681991. The reversal of 7681984 is 4891867.

It is a self number, because there is not a number n which added to its sum of digits gives 7681984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214 + ... + 3925.

Almost surely, 2^7681984 is an apocalyptic number.

It is an amenable number.

7681984 is an abundant number, since it is smaller than the sum of its proper divisors (8091416).

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

7681984 is a wasteful number, since it uses less digits than its factorization.

7681984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180 (or 4170 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 7681984 is about 2771.6392261620. The cubic root of 7681984 is about 197.3139539446.

The spelling of 7681984 in words is "seven million, six hundred eighty-one thousand, nine hundred eighty-four".