494364859 has 4 divisors (see below), whose sum is σ = 494795520. Its totient is φ = 493934200.

The previous prime is 494364841. The next prime is 494364869. The reversal of 494364859 is 958463494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494364859 is a prime.

It is a super-2 number, since 2×494364859² = 488793227628179762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494364869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213604 + ... + 215905.

It is an arithmetic number, because the mean of its divisors is an integer number (123698880).

Almost surely, 2^494364859 is an apocalyptic number.

494364859 is a deficient number, since it is larger than the sum of its proper divisors (430661).

494364859 is a wasteful number, since it uses less digits than its factorization.

494364859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430660.

The product of its digits is 3732480, while the sum is 52.

The square root of 494364859 is about 22234.3171471489. The cubic root of 494364859 is about 790.7075107043.

The spelling of 494364859 in words is "four hundred ninety-four million, three hundred sixty-four thousand, eight hundred fifty-nine".