489697770 has 32 divisors (see below), whose sum is σ = 1215803520. Its totient is φ = 126082880.

The previous prime is 489697763. The next prime is 489697777. The reversal of 489697770 is 77796984.

It is an interprime number because it is at equal distance from previous prime (489697763) and next prime (489697777).

It is a self number, because there is not a number n which added to its sum of digits gives 489697770.

It is not an unprimeable number, because it can be changed into a prime (489697777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280566 + ... + 282305.

It is an arithmetic number, because the mean of its divisors is an integer number (37993860).

Almost surely, 2^489697770 is an apocalyptic number.

489697770 is an abundant number, since it is smaller than the sum of its proper divisors (726105750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489697770 is a wasteful number, since it uses less digits than its factorization.

489697770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562910.

The product of its (nonzero) digits is 5334336, while the sum is 57.

The square root of 489697770 is about 22129.1158883494. The cubic root of 489697770 is about 788.2113944516.

The spelling of 489697770 in words is "four hundred eighty-nine million, six hundred ninety-seven thousand, seven hundred seventy".