489942311 has 2 divisors, whose sum is σ = 489942312. Its totient is φ = 489942310.

The previous prime is 489942287. The next prime is 489942317. The reversal of 489942311 is 113249984.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489942311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489942317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244971155 + 244971156.

It is an arithmetic number, because the mean of its divisors is an integer number (244971156).

Almost surely, 2^489942311 is an apocalyptic number.

489942311 is a deficient number, since it is larger than the sum of its proper divisors (1).

489942311 is an equidigital number, since it uses as much as digits as its factorization.

489942311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 489942311 is about 22134.6405211379. The cubic root of 489942311 is about 788.3425759944.

The spelling of 489942311 in words is "four hundred eighty-nine million, nine hundred forty-two thousand, three hundred eleven".