8479969 has 4 divisors (see below), whose sum is σ = 8493460. Its totient is φ = 8466480.

The previous prime is 8479967. The next prime is 8479979. The reversal of 8479969 is 9699748.

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 6697744 + 1782225 = 2588^2 + 1335^2 .

It is a cyclic number.

It is not a de Polignac number, because 8479969 - 2¹ = 8479967 is a prime.

It is a super-2 number, since 2×8479969² = 143819748481922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8479963) 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, 5754 + ... + 7075.

It is an arithmetic number, because the mean of its divisors is an integer number (2123365).

Almost surely, 2^8479969 is an apocalyptic number.

It is an amenable number.

8479969 is a deficient number, since it is larger than the sum of its proper divisors (13491).

8479969 is a wasteful number, since it uses less digits than its factorization.

8479969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13490.

The product of its digits is 979776, while the sum is 52.

The square root of 8479969 is about 2912.0386329855. The cubic root of 8479969 is about 203.9223159936.

It can be divided in two parts, 847 and 9969, that added together give a square (10816 = 104²).

The spelling of 8479969 in words is "eight million, four hundred seventy-nine thousand, nine hundred sixty-nine".