494828489 has 2 divisors, whose sum is σ = 494828490. Its totient is φ = 494828488.

The previous prime is 494828483. The next prime is 494828497. The reversal of 494828489 is 984828494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 437144464 + 57684025 = 20908^2 + 7595^2 .

It is a cyclic number.

It is not a de Polignac number, because 494828489 - 2²⁸ = 226393033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (494828483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247414244 + 247414245.

It is an arithmetic number, because the mean of its divisors is an integer number (247414245).

Almost surely, 2^494828489 is an apocalyptic number.

It is an amenable number.

494828489 is a deficient number, since it is larger than the sum of its proper divisors (1).

494828489 is an equidigital number, since it uses as much as digits as its factorization.

494828489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5308416, while the sum is 56.

The square root of 494828489 is about 22244.7407042654. The cubic root of 494828489 is about 790.9546164433.

The spelling of 494828489 in words is "four hundred ninety-four million, eight hundred twenty-eight thousand, four hundred eighty-nine".