495117859 has 4 divisors (see below), whose sum is σ = 495168120. Its totient is φ = 495067600.

The previous prime is 495117851. The next prime is 495117893. The reversal of 495117859 is 958711594.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 495117859 - 2³ = 495117851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495117851) 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, 4954 + ... + 31855.

It is an arithmetic number, because the mean of its divisors is an integer number (123792030).

Almost surely, 2^495117859 is an apocalyptic number.

495117859 is a deficient number, since it is larger than the sum of its proper divisors (50261).

495117859 is a wasteful number, since it uses less digits than its factorization.

495117859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50260.

The product of its digits is 453600, while the sum is 49.

The square root of 495117859 is about 22251.2439876965. The cubic root of 495117859 is about 791.1087667814.

The spelling of 495117859 in words is "four hundred ninety-five million, one hundred seventeen thousand, eight hundred fifty-nine".