489975698 has 4 divisors (see below), whose sum is σ = 734963550. Its totient is φ = 244987848.

The previous prime is 489975697. The next prime is 489975701. The reversal of 489975698 is 896579984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 414407449 + 75568249 = 20357^2 + 8693^2 .

It is not an unprimeable number, because it can be changed into a prime (489975697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122493923 + ... + 122493926.

Almost surely, 2^489975698 is an apocalyptic number.

489975698 is a deficient number, since it is larger than the sum of its proper divisors (244987852).

489975698 is a wasteful number, since it uses less digits than its factorization.

489975698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244987851.

The product of its digits is 39191040, while the sum is 65.

The square root of 489975698 is about 22135.3946881460. The cubic root of 489975698 is about 788.3604827255.

The spelling of 489975698 in words is "four hundred eighty-nine million, nine hundred seventy-five thousand, six hundred ninety-eight".