609495887 has 16 divisors (see below), whose sum is σ = 818345472. Its totient is φ = 438397920.

The previous prime is 609495881. The next prime is 609495899. The reversal of 609495887 is 788594906.

It is a cyclic number.

It is not a de Polignac number, because 609495887 - 2¹² = 609491791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609495881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303443 + ... + 305444.

It is an arithmetic number, because the mean of its divisors is an integer number (51146592).

Almost surely, 2^609495887 is an apocalyptic number.

609495887 is a deficient number, since it is larger than the sum of its proper divisors (208849585).

609495887 is a wasteful number, since it uses less digits than its factorization.

609495887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608918.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The square root of 609495887 is about 24687.9704917192. The cubic root of 609495887 is about 847.8589190472.

The spelling of 609495887 in words is "six hundred nine million, four hundred ninety-five thousand, eight hundred eighty-seven".