489977998 has 8 divisors (see below), whose sum is σ = 735691320. Its totient is φ = 244747560.

The previous prime is 489977981. The next prime is 489978031. The reversal of 489977998 is 899779984.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118173 + ... + 122248.

It is an arithmetic number, because the mean of its divisors is an integer number (91961415).

Almost surely, 2^489977998 is an apocalyptic number.

489977998 is a deficient number, since it is larger than the sum of its proper divisors (245713322).

489977998 is a wasteful number, since it uses less digits than its factorization.

489977998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241442.

The product of its digits is 82301184, while the sum is 70.

The square root of 489977998 is about 22135.4466410777. The cubic root of 489977998 is about 788.3617162740.

The spelling of 489977998 in words is "four hundred eighty-nine million, nine hundred seventy-seven thousand, nine hundred ninety-eight".