7994478 has 32 divisors (see below), whose sum is σ = 17568000. Its totient is φ = 2414016.

The previous prime is 7994461. The next prime is 7994489. The reversal of 7994478 is 8744997.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1098 + ... + 4146.

It is an arithmetic number, because the mean of its divisors is an integer number (549000).

Almost surely, 2^7994478 is an apocalyptic number.

7994478 is an abundant number, since it is smaller than the sum of its proper divisors (9573522).

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

7994478 is a wasteful number, since it uses less digits than its factorization.

7994478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096.

The product of its digits is 508032, while the sum is 48.

The square root of 7994478 is about 2827.4507953278. The cubic root of 7994478 is about 199.9539727416.

The spelling of 7994478 in words is "seven million, nine hundred ninety-four thousand, four hundred seventy-eight".