8479709 has 16 divisors (see below), whose sum is σ = 10444800. Its totient is φ = 6724080.

The previous prime is 8479703. The next prime is 8479717. The reversal of 8479709 is 9079748.

8479709 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8479709 - 2¹² = 8475613 is a prime.

It is a Duffinian number.

8479709 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 8479709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8479703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4142 + ... + 5840.

It is an arithmetic number, because the mean of its divisors is an integer number (652800).

Almost surely, 2^8479709 is an apocalyptic number.

It is an amenable number.

8479709 is a deficient number, since it is larger than the sum of its proper divisors (1965091).

8479709 is a wasteful number, since it uses less digits than its factorization.

8479709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 8479709 is about 2911.9939903784. The cubic root of 8479709 is about 203.9202318530.

The spelling of 8479709 in words is "eight million, four hundred seventy-nine thousand, seven hundred nine".