6867009 has 6 divisors (see below), whose sum is σ = 9919026. Its totient is φ = 4578000.

The previous prime is 6867001. The next prime is 6867019. The reversal of 6867009 is 9007686.

It can be written as a sum of positive squares in only one way, i.e., 6051600 + 815409 = 2460^2 + 903^2 .

It is not a de Polignac number, because 6867009 - 2³ = 6867001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6867001) 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, 381492 + ... + 381509.

It is an arithmetic number, because the mean of its divisors is an integer number (1653171).

Almost surely, 2^6867009 is an apocalyptic number.

It is an amenable number.

6867009 is a deficient number, since it is larger than the sum of its proper divisors (3052017).

6867009 is a wasteful number, since it uses less digits than its factorization.

6867009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763007 (or 763004 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 6867009 is about 2620.4978534622. The cubic root of 6867009 is about 190.0739232202.

The spelling of 6867009 in words is "six million, eight hundred sixty-seven thousand, nine".