6900609 has 4 divisors (see below), whose sum is σ = 9200816. Its totient is φ = 4600404.

The previous prime is 6900601. The next prime is 6900613. The reversal of 6900609 is 9060096.

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 not a de Polignac number, because 6900609 - 2³ = 6900601 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6900601) 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, 1150099 + ... + 1150104.

It is an arithmetic number, because the mean of its divisors is an integer number (2300204).

Almost surely, 2^6900609 is an apocalyptic number.

It is an amenable number.

6900609 is a deficient number, since it is larger than the sum of its proper divisors (2300207).

6900609 is a wasteful number, since it uses less digits than its factorization.

6900609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300206.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 6900609 is about 2626.9010259239. The cubic root of 6900609 is about 190.3834270024.

The spelling of 6900609 in words is "six million, nine hundred thousand, six hundred nine".