489597766 has 16 divisors (see below), whose sum is σ = 842798880. Its totient is φ = 208955520.

The previous prime is 489597761. The next prime is 489597793. The reversal of 489597766 is 667795984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489597761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69181 + ... + 75928.

It is an arithmetic number, because the mean of its divisors is an integer number (52674930).

Almost surely, 2^489597766 is an apocalyptic number.

489597766 is a deficient number, since it is larger than the sum of its proper divisors (353201114).

489597766 is a wasteful number, since it uses less digits than its factorization.

489597766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145359.

The product of its digits is 22861440, while the sum is 61.

The square root of 489597766 is about 22126.8562159201. The cubic root of 489597766 is about 788.1577357370.

The spelling of 489597766 in words is "four hundred eighty-nine million, five hundred ninety-seven thousand, seven hundred sixty-six".