489872839 has 8 divisors (see below), whose sum is σ = 517341440. Its totient is φ = 462572856.

The previous prime is 489872827. The next prime is 489872861. The reversal of 489872839 is 938278984.

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

It is a cyclic number.

It is not a de Polignac number, because 489872839 - 2¹⁹ = 489348551 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 (489878839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36159 + ... + 47824.

It is an arithmetic number, because the mean of its divisors is an integer number (64667680).

Almost surely, 2^489872839 is an apocalyptic number.

489872839 is a deficient number, since it is larger than the sum of its proper divisors (27468601).

489872839 is a wasteful number, since it uses less digits than its factorization.

489872839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84309.

The product of its digits is 6967296, while the sum is 58.

The square root of 489872839 is about 22133.0711605959. The cubic root of 489872839 is about 788.3053128833.

The spelling of 489872839 in words is "four hundred eighty-nine million, eight hundred seventy-two thousand, eight hundred thirty-nine".