906606609 has 4 divisors (see below), whose sum is σ = 1208808816. Its totient is φ = 604404404.

The previous prime is 906606601. The next prime is 906606611.

906606609 is nontrivially palindromic in base 10.

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 906606609 - 2³ = 906606601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (906606601) 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, 151101099 + ... + 151101104.

It is an arithmetic number, because the mean of its divisors is an integer number (302202204).

Almost surely, 2^906606609 is an apocalyptic number.

It is an amenable number.

906606609 is a deficient number, since it is larger than the sum of its proper divisors (302202207).

906606609 is a wasteful number, since it uses less digits than its factorization.

906606609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302202206.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 906606609 is about 30109.9088175305. The cubic root of 906606609 is about 967.8460758743.

The spelling of 906606609 in words is "nine hundred six million, six hundred six thousand, six hundred nine".