494693859 has 48 divisors (see below), whose sum is σ = 744936192. Its totient is φ = 291720000.

The previous prime is 494693839. The next prime is 494693869. The reversal of 494693859 is 958396494.

It is a happy number.

It is not a de Polignac number, because 494693859 - 2⁵ = 494693827 is a prime.

Its product of digits (8398080) is a multiple of the sum of its prime factors (360).

It is a junction number, because it is equal to n+sod(n) for n = 494693799 and 494693808.

It is not an unprimeable number, because it can be changed into a prime (494693839) 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 47 ways as a sum of consecutive naturals, for example, 3776224 + ... + 3776354.

It is an arithmetic number, because the mean of its divisors is an integer number (15519504).

Almost surely, 2^494693859 is an apocalyptic number.

494693859 is a deficient number, since it is larger than the sum of its proper divisors (250242333).

494693859 is a wasteful number, since it uses less digits than its factorization.

494693859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 349 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 57.

The square root of 494693859 is about 22241.7143898576. The cubic root of 494693859 is about 790.8828771900.

The spelling of 494693859 in words is "four hundred ninety-four million, six hundred ninety-three thousand, eight hundred fifty-nine".