7894447 has 8 divisors (see below), whose sum is σ = 8681472. Its totient is φ = 7119000.

The previous prime is 7894433. The next prime is 7894457. The reversal of 7894447 is 7444987.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7894447 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7894417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429 + ... + 4222.

It is an arithmetic number, because the mean of its divisors is an integer number (1085184).

Almost surely, 2^7894447 is an apocalyptic number.

7894447 is a deficient number, since it is larger than the sum of its proper divisors (787025).

7894447 is a wasteful number, since it uses less digits than its factorization.

7894447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789.

The product of its digits is 225792, while the sum is 43.

The square root of 7894447 is about 2809.7058564910. The cubic root of 7894447 is about 199.1164945039.

The spelling of 7894447 in words is "seven million, eight hundred ninety-four thousand, four hundred forty-seven".