489149793 has 32 divisors (see below), whose sum is σ = 800110080. Its totient is φ = 292867920.

The previous prime is 489149783. The next prime is 489149807. The reversal of 489149793 is 397941984.

It is not a de Polignac number, because 489149793 - 2¹⁷ = 489018721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489149723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14730 + ... + 34572.

It is an arithmetic number, because the mean of its divisors is an integer number (25003440).

Almost surely, 2^489149793 is an apocalyptic number.

It is an amenable number.

489149793 is a deficient number, since it is larger than the sum of its proper divisors (310960287).

489149793 is a wasteful number, since it uses less digits than its factorization.

489149793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19946 (or 19940 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 489149793 is about 22116.7310649653. The cubic root of 489149793 is about 787.9172790806.

The spelling of 489149793 in words is "four hundred eighty-nine million, one hundred forty-nine thousand, seven hundred ninety-three".