489647837 has 12 divisors (see below), whose sum is σ = 582839136. Its totient is φ = 409935960.

The previous prime is 489647831. The next prime is 489647843. The reversal of 489647837 is 738746984.

It is an interprime number because it is at equal distance from previous prime (489647831) and next prime (489647843).

It is not a de Polignac number, because 489647837 - 2⁶ = 489647773 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 (489647831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114089 + ... + 118302.

It is an arithmetic number, because the mean of its divisors is an integer number (48569928).

Almost surely, 2^489647837 is an apocalyptic number.

It is an amenable number.

489647837 is a deficient number, since it is larger than the sum of its proper divisors (93191299).

489647837 is a wasteful number, since it uses less digits than its factorization.

489647837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232448 (or 232441 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 56.

The square root of 489647837 is about 22127.9876400905. The cubic root of 489647837 is about 788.1846030306.

The spelling of 489647837 in words is "four hundred eighty-nine million, six hundred forty-seven thousand, eight hundred thirty-seven".