8479997 has 4 divisors (see below), whose sum is σ = 8492796. Its totient is φ = 8467200.

The previous prime is 8479981. The next prime is 8480033. The reversal of 8479997 is 7999748.

8479997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3345241 + 5134756 = 1829^2 + 2266^2 .

It is a cyclic number.

It is not a de Polignac number, because 8479997 - 2⁴ = 8479981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8479937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5348 + ... + 6749.

It is an arithmetic number, because the mean of its divisors is an integer number (2123199).

Almost surely, 2^8479997 is an apocalyptic number.

It is an amenable number.

8479997 is a deficient number, since it is larger than the sum of its proper divisors (12799).

8479997 is a wasteful number, since it uses less digits than its factorization.

8479997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12798.

The product of its digits is 1143072, while the sum is 53.

The square root of 8479997 is about 2912.0434406100. The cubic root of 8479997 is about 203.9225404370.

Subtracting from 8479997 its reverse (7999748), we obtain a square (480249 = 693²).

The spelling of 8479997 in words is "eight million, four hundred seventy-nine thousand, nine hundred ninety-seven".