494853691 has 2 divisors, whose sum is σ = 494853692. Its totient is φ = 494853690.

The previous prime is 494853683. The next prime is 494853701. The reversal of 494853691 is 196358494.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494853691 - 2³ = 494853683 is a prime.

It is equal to p_26098789 and since 494853691 and 26098789 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (494853661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247426845 + 247426846.

It is an arithmetic number, because the mean of its divisors is an integer number (247426846).

Almost surely, 2^494853691 is an apocalyptic number.

494853691 is a deficient number, since it is larger than the sum of its proper divisors (1).

494853691 is an equidigital number, since it uses as much as digits as its factorization.

494853691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The square root of 494853691 is about 22245.3071680298. The cubic root of 494853691 is about 790.9680441933.

The spelling of 494853691 in words is "four hundred ninety-four million, eight hundred fifty-three thousand, six hundred ninety-one".