489738887 has 4 divisors (see below), whose sum is σ = 534260616. Its totient is φ = 445217160.

The previous prime is 489738871. The next prime is 489738913. The reversal of 489738887 is 788837984.

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

It is a cyclic number.

It is not a de Polignac number, because 489738887 - 2⁴ = 489738871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489738817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22260848 + ... + 22260869.

It is an arithmetic number, because the mean of its divisors is an integer number (133565154).

Almost surely, 2^489738887 is an apocalyptic number.

489738887 is a deficient number, since it is larger than the sum of its proper divisors (44521729).

489738887 is a wasteful number, since it uses less digits than its factorization.

489738887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44521728.

The product of its digits is 21676032, while the sum is 62.

The square root of 489738887 is about 22130.0448937638. The cubic root of 489738887 is about 788.2334543035.

The spelling of 489738887 in words is "four hundred eighty-nine million, seven hundred thirty-eight thousand, eight hundred eighty-seven".