494697811 has 4 divisors (see below), whose sum is σ = 494782624. Its totient is φ = 494613000.

The previous prime is 494697787. The next prime is 494697817. The reversal of 494697811 is 118796494.

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

It is a cyclic number.

It is not a de Polignac number, because 494697811 - 2⁹ = 494697299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494697817) 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, 32955 + ... + 45556.

It is an arithmetic number, because the mean of its divisors is an integer number (123695656).

Almost surely, 2^494697811 is an apocalyptic number.

494697811 is a deficient number, since it is larger than the sum of its proper divisors (84813).

494697811 is an equidigital number, since it uses as much as digits as its factorization.

494697811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84812.

The product of its digits is 435456, while the sum is 49.

The square root of 494697811 is about 22241.8032317526. The cubic root of 494697811 is about 790.8849832473.

The spelling of 494697811 in words is "four hundred ninety-four million, six hundred ninety-seven thousand, eight hundred eleven".