489145379 has 2 divisors, whose sum is σ = 489145380. Its totient is φ = 489145378.

The previous prime is 489145351. The next prime is 489145429. The reversal of 489145379 is 973541984.

It is an a-pointer prime, because the next prime (489145429) can be obtained adding 489145379 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 489145379 - 2⁸ = 489145123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (489141379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244572689 + 244572690.

It is an arithmetic number, because the mean of its divisors is an integer number (244572690).

Almost surely, 2^489145379 is an apocalyptic number.

489145379 is a deficient number, since it is larger than the sum of its proper divisors (1).

489145379 is an equidigital number, since it uses as much as digits as its factorization.

489145379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 50.

The square root of 489145379 is about 22116.6312760330. The cubic root of 489145379 is about 787.9149090654.

The spelling of 489145379 in words is "four hundred eighty-nine million, one hundred forty-five thousand, three hundred seventy-nine".