489123892 has 6 divisors (see below), whose sum is σ = 855966818. Its totient is φ = 244561944.

The previous prime is 489123853. The next prime is 489123907. The reversal of 489123892 is 298321984.

It can be written as a sum of positive squares in only one way, i.e., 407474596 + 81649296 = 20186^2 + 9036^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61140483 + ... + 61140490.

Almost surely, 2^489123892 is an apocalyptic number.

It is an amenable number.

489123892 is a deficient number, since it is larger than the sum of its proper divisors (366842926).

489123892 is a wasteful number, since it uses less digits than its factorization.

489123892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122280977 (or 122280975 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 489123892 is about 22116.1455050377. The cubic root of 489123892 is about 787.9033718168.

The spelling of 489123892 in words is "four hundred eighty-nine million, one hundred twenty-three thousand, eight hundred ninety-two".