489787933 has 2 divisors, whose sum is σ = 489787934. Its totient is φ = 489787932.

The previous prime is 489787919. The next prime is 489787939. The reversal of 489787933 is 339787984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 482153764 + 7634169 = 21958^2 + 2763^2 .

It is a cyclic number.

It is not a de Polignac number, because 489787933 - 2¹⁷ = 489656861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489787939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244893966 + 244893967.

It is an arithmetic number, because the mean of its divisors is an integer number (244893967).

Almost surely, 2^489787933 is an apocalyptic number.

It is an amenable number.

489787933 is a deficient number, since it is larger than the sum of its proper divisors (1).

489787933 is an equidigital number, since it uses as much as digits as its factorization.

489787933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 58.

The square root of 489787933 is about 22131.1529975282. The cubic root of 489787933 is about 788.2597665613.

The spelling of 489787933 in words is "four hundred eighty-nine million, seven hundred eighty-seven thousand, nine hundred thirty-three".