489647826 has 12 divisors (see below), whose sum is σ = 1060903662. Its totient is φ = 163215936.

The previous prime is 489647813. The next prime is 489647827. The reversal of 489647826 is 628746984.

It can be written as a sum of positive squares in only one way, i.e., 283754025 + 205893801 = 16845^2 + 14349^2 .

It is not an unprimeable number, because it can be changed into a prime (489647827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13601311 + ... + 13601346.

Almost surely, 2^489647826 is an apocalyptic number.

489647826 is an abundant number, since it is smaller than the sum of its proper divisors (571255836).

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

489647826 is a wasteful number, since it uses less digits than its factorization.

489647826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27202665 (or 27202662 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The square root of 489647826 is about 22127.9873915365. The cubic root of 489647826 is about 788.1845971284.

The spelling of 489647826 in words is "four hundred eighty-nine million, six hundred forty-seven thousand, eight hundred twenty-six".