494092889 has 2 divisors, whose sum is σ = 494092890. Its totient is φ = 494092888.

The previous prime is 494092801. The next prime is 494092897. The reversal of 494092889 is 988290494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368832025 + 125260864 = 19205^2 + 11192^2 .

It is a cyclic number.

It is not a de Polignac number, because 494092889 - 2²⁰ = 493044313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 494092889.

It is not a weakly prime, because it can be changed into another prime (494091889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247046444 + 247046445.

It is an arithmetic number, because the mean of its divisors is an integer number (247046445).

Almost surely, 2^494092889 is an apocalyptic number.

It is an amenable number.

494092889 is a deficient number, since it is larger than the sum of its proper divisors (1).

494092889 is an equidigital number, since it uses as much as digits as its factorization.

494092889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 494092889 is about 22228.2003095167. The cubic root of 494092889 is about 790.5624841006.

The spelling of 494092889 in words is "four hundred ninety-four million, ninety-two thousand, eight hundred eighty-nine".