7673640 has 64 divisors (see below), whose sum is σ = 24796800. Its totient is φ = 1888512.

The previous prime is 7673621. The next prime is 7673657. The reversal of 7673640 is 463767.

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 15 ways as a sum of consecutive naturals, for example, 900 + ... + 4019.

It is an arithmetic number, because the mean of its divisors is an integer number (387450).

Almost surely, 2^7673640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7673640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12398400).

7673640 is an abundant number, since it is smaller than the sum of its proper divisors (17123160).

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

7673640 is a wasteful number, since it uses less digits than its factorization.

7673640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4946 (or 4942 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 7673640 is about 2770.1335707868. The cubic root of 7673640 is about 197.2424887224.

The spelling of 7673640 in words is "seven million, six hundred seventy-three thousand, six hundred forty".