609505906 has 8 divisors (see below), whose sum is σ = 914407020. Its totient is φ = 304703568.

The previous prime is 609505891. The next prime is 609505969.

609505906 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 584914225 + 24591681 = 24185^2 + 4959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6621 + ... + 35536.

Almost surely, 2^609505906 is an apocalyptic number.

609505906 is a deficient number, since it is larger than the sum of its proper divisors (304901114).

609505906 is a wasteful number, since it uses less digits than its factorization.

609505906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49388.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 609505906 is about 24688.1734034740. The cubic root of 609505906 is about 847.8635647728.

The spelling of 609505906 in words is "six hundred nine million, five hundred five thousand, nine hundred six".