8748009 has 6 divisors (see below), whose sum is σ = 12636026. Its totient is φ = 5832000.

The previous prime is 8748001. The next prime is 8748011. The reversal of 8748009 is 9008478.

It can be written as a sum of positive squares in only one way, i.e., 8139609 + 608400 = 2853^2 + 780^2 .

It is not a de Polignac number, because 8748009 - 2³ = 8748001 is a prime.

It is a super-2 number, since 2×8748009² = 153055322928162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8748001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 485992 + ... + 486009.

Almost surely, 2^8748009 is an apocalyptic number.

It is an amenable number.

8748009 is a deficient number, since it is larger than the sum of its proper divisors (3888017).

8748009 is a wasteful number, since it uses less digits than its factorization.

8748009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972007 (or 972004 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8748009 is about 2957.7033319791. The cubic root of 8748009 is about 206.0486343209.

The spelling of 8748009 in words is "eight million, seven hundred forty-eight thousand, nine".