494812289 has 2 divisors, whose sum is σ = 494812290. Its totient is φ = 494812288.

The previous prime is 494812273. The next prime is 494812333. The reversal of 494812289 is 982218494.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 483252289 + 11560000 = 21983^2 + 3400^2 .

It is a cyclic number.

It is not a de Polignac number, because 494812289 - 2⁴ = 494812273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (494812249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247406144 + 247406145.

It is an arithmetic number, because the mean of its divisors is an integer number (247406145).

Almost surely, 2^494812289 is an apocalyptic number.

It is an amenable number.

494812289 is a deficient number, since it is larger than the sum of its proper divisors (1).

494812289 is an equidigital number, since it uses as much as digits as its factorization.

494812289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 47.

The square root of 494812289 is about 22244.3765702705. The cubic root of 494812289 is about 790.9459847625.

The spelling of 494812289 in words is "four hundred ninety-four million, eight hundred twelve thousand, two hundred eighty-nine".