6901009 has 4 divisors (see below), whose sum is σ = 7264240. Its totient is φ = 6537780.

The previous prime is 6901007. The next prime is 6901033. The reversal of 6901009 is 9001096.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6901009 - 2¹ = 6901007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6901007) 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, 181587 + ... + 181624.

It is an arithmetic number, because the mean of its divisors is an integer number (1816060).

Almost surely, 2^6901009 is an apocalyptic number.

It is an amenable number.

6901009 is a deficient number, since it is larger than the sum of its proper divisors (363231).

6901009 is a wasteful number, since it uses less digits than its factorization.

6901009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363230.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 6901009 is about 2626.9771601596. The cubic root of 6901009 is about 190.3871055134.

The spelling of 6901009 in words is "six million, nine hundred one thousand, nine".