8947479 has 8 divisors (see below), whose sum is σ = 11943792. Its totient is φ = 5958080.

The previous prime is 8947469. The next prime is 8947481. The reversal of 8947479 is 9747498.

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-8947479 is a prime.

8947479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8947459) 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, 4297 + ... + 6029.

It is an arithmetic number, because the mean of its divisors is an integer number (1492974).

Almost surely, 2^8947479 is an apocalyptic number.

8947479 is a deficient number, since it is larger than the sum of its proper divisors (2996313).

8947479 is a wasteful number, since it uses less digits than its factorization.

8947479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457.

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

The square root of 8947479 is about 2991.2336919739. The cubic root of 8947479 is about 207.6029701351.

The spelling of 8947479 in words is "eight million, nine hundred forty-seven thousand, four hundred seventy-nine".