494892691 has 2 divisors, whose sum is σ = 494892692. Its totient is φ = 494892690.

The previous prime is 494892667. The next prime is 494892701. The reversal of 494892691 is 196298494.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 494892691 - 2⁹ = 494892179 is a prime.

It is not a weakly prime, because it can be changed into another prime (494892631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247446345 + 247446346.

It is an arithmetic number, because the mean of its divisors is an integer number (247446346).

Almost surely, 2^494892691 is an apocalyptic number.

494892691 is a deficient number, since it is larger than the sum of its proper divisors (1).

494892691 is an equidigital number, since it uses as much as digits as its factorization.

494892691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 52.

The square root of 494892691 is about 22246.1837401384. The cubic root of 494892691 is about 790.9888226874.

The spelling of 494892691 in words is "four hundred ninety-four million, eight hundred ninety-two thousand, six hundred ninety-one".