489294331 has 2 divisors, whose sum is σ = 489294332. Its totient is φ = 489294330.

The previous prime is 489294329. The next prime is 489294349. The reversal of 489294331 is 133492984.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 489294331 - 2¹ = 489294329 is a prime.

It is a super-2 number, since 2×489294331² = 478817884697475122, which contains 22 as substring.

Together with 489294329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (489294361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244647165 + 244647166.

It is an arithmetic number, because the mean of its divisors is an integer number (244647166).

Almost surely, 2^489294331 is an apocalyptic number.

489294331 is a deficient number, since it is larger than the sum of its proper divisors (1).

489294331 is an equidigital number, since it uses as much as digits as its factorization.

489294331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 489294331 is about 22119.9984403254. The cubic root of 489294331 is about 787.9948781951.

The spelling of 489294331 in words is "four hundred eighty-nine million, two hundred ninety-four thousand, three hundred thirty-one".