6475009 has 4 divisors (see below), whose sum is σ = 6539220. Its totient is φ = 6410800.

The previous prime is 6474973. The next prime is 6475019. The reversal of 6475009 is 9005746.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9005746 = 2 ⋅4502873.

It can be written as a sum of positive squares in 2 ways, for example, as 6350400 + 124609 = 2520^2 + 353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6475009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6475019) 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, 31954 + ... + 32155.

It is an arithmetic number, because the mean of its divisors is an integer number (1634805).

Almost surely, 2^6475009 is an apocalyptic number.

It is an amenable number.

6475009 is a deficient number, since it is larger than the sum of its proper divisors (64211).

6475009 is a wasteful number, since it uses less digits than its factorization.

6475009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64210.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 6475009 is about 2544.6038984486. The cubic root of 6475009 is about 186.3860732563.

The spelling of 6475009 in words is "six million, four hundred seventy-five thousand, nine".