489969137 has 4 divisors (see below), whose sum is σ = 559964736. Its totient is φ = 419973540.

The previous prime is 489969101. The next prime is 489969163. The reversal of 489969137 is 731969984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 489969137 - 2²² = 485774833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489969187) 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, 34997789 + ... + 34997802.

It is an arithmetic number, because the mean of its divisors is an integer number (139991184).

Almost surely, 2^489969137 is an apocalyptic number.

It is an amenable number.

489969137 is a deficient number, since it is larger than the sum of its proper divisors (69995599).

489969137 is an equidigital number, since it uses as much as digits as its factorization.

489969137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69995598.

The product of its digits is 2939328, while the sum is 56.

The square root of 489969137 is about 22135.2464860909. The cubic root of 489969137 is about 788.3569638733.

The spelling of 489969137 in words is "four hundred eighty-nine million, nine hundred sixty-nine thousand, one hundred thirty-seven".