489719101 has 4 divisors (see below), whose sum is σ = 493242400. Its totient is φ = 486195804.

The previous prime is 489719081. The next prime is 489719117. The reversal of 489719101 is 101917984.

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 a cyclic number.

It is not a de Polignac number, because 489719101 - 2⁹ = 489718589 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 (489719141) 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, 1761441 + ... + 1761718.

It is an arithmetic number, because the mean of its divisors is an integer number (123310600).

Almost surely, 2^489719101 is an apocalyptic number.

It is an amenable number.

489719101 is a deficient number, since it is larger than the sum of its proper divisors (3523299).

489719101 is a wasteful number, since it uses less digits than its factorization.

489719101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523298.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 489719101 is about 22129.5978499384. The cubic root of 489719101 is about 788.2228389889. Note that the first 3 decimals are identical.

The spelling of 489719101 in words is "four hundred eighty-nine million, seven hundred nineteen thousand, one hundred one".