7993404 has 30 divisors (see below), whose sum is σ = 20897184. Its totient is φ = 2664360.

The previous prime is 7993367. The next prime is 7993421. The reversal of 7993404 is 4043997.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12012 + ... + 12659.

Almost surely, 2^7993404 is an apocalyptic number.

It is an amenable number.

7993404 is an abundant number, since it is smaller than the sum of its proper divisors (12903780).

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

7993404 is a wasteful number, since it uses less digits than its factorization.

7993404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24687 (or 24676 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 7993404 is about 2827.2608652192. The cubic root of 7993404 is about 199.9450182197.

The spelling of 7993404 in words is "seven million, nine hundred ninety-three thousand, four hundred four".