495967889 has 8 divisors (see below), whose sum is σ = 513327360. Its totient is φ = 478625616.

The previous prime is 495967859. The next prime is 495967903. The reversal of 495967889 is 988769594.

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

It is a cyclic number.

It is not a de Polignac number, because 495967889 - 2²⁸ = 227532433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495967819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89024 + ... + 94430.

It is an arithmetic number, because the mean of its divisors is an integer number (64165920).

Almost surely, 2^495967889 is an apocalyptic number.

It is an amenable number.

495967889 is a deficient number, since it is larger than the sum of its proper divisors (17359471).

495967889 is a wasteful number, since it uses less digits than its factorization.

495967889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8599.

The product of its digits is 39191040, while the sum is 65.

The square root of 495967889 is about 22270.3365264201. The cubic root of 495967889 is about 791.5612393285.

The spelling of 495967889 in words is "four hundred ninety-five million, nine hundred sixty-seven thousand, eight hundred eighty-nine".