494928691 has 2 divisors, whose sum is σ = 494928692. Its totient is φ = 494928690.

The previous prime is 494928673. The next prime is 494928719. The reversal of 494928691 is 196829494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494928691 - 2¹³ = 494920499 is a prime.

It is not a weakly prime, because it can be changed into another prime (494920691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247464345 + 247464346.

It is an arithmetic number, because the mean of its divisors is an integer number (247464346).

Almost surely, 2^494928691 is an apocalyptic number.

494928691 is a deficient number, since it is larger than the sum of its proper divisors (1).

494928691 is an equidigital number, since it uses as much as digits as its factorization.

494928691 is an odious number, because the sum of its binary digits is odd.

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

The square root of 494928691 is about 22246.9928529678. The cubic root of 494928691 is about 791.0080018668.

The spelling of 494928691 in words is "four hundred ninety-four million, nine hundred twenty-eight thousand, six hundred ninety-one".