7673840 has 20 divisors (see below), whose sum is σ = 17841864. Its totient is φ = 3069504.

The previous prime is 7673819. The next prime is 7673843. The reversal of 7673840 is 483767.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7673840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7673843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47882 + ... + 48041.

Almost surely, 2^7673840 is an apocalyptic number.

It is an amenable number.

7673840 is an abundant number, since it is smaller than the sum of its proper divisors (10168024).

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

7673840 is a wasteful number, since it uses less digits than its factorization.

7673840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95936 (or 95930 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 7673840 is about 2770.1696698939. The cubic root of 7673840 is about 197.2442023009.

The spelling of 7673840 in words is "seven million, six hundred seventy-three thousand, eight hundred forty".