8870447 has 4 divisors (see below), whose sum is σ = 9392256. Its totient is φ = 8348640.

The previous prime is 8870443. The next prime is 8870467. The reversal of 8870447 is 7440788.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8870447 - 2² = 8870443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8870447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8870443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260879 + ... + 260912.

It is an arithmetic number, because the mean of its divisors is an integer number (2348064).

Almost surely, 2^8870447 is an apocalyptic number.

8870447 is a deficient number, since it is larger than the sum of its proper divisors (521809).

8870447 is a wasteful number, since it uses less digits than its factorization.

8870447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521808.

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 8870447 is about 2978.3295653772. The cubic root of 8870447 is about 207.0054764512.

The spelling of 8870447 in words is "eight million, eight hundred seventy thousand, four hundred forty-seven".