489211091 has 8 divisors (see below), whose sum is σ = 518945040. Its totient is φ = 459583488.

The previous prime is 489211001. The next prime is 489211111. The reversal of 489211091 is 190112984.

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 489211091 - 2¹⁸ = 488948947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489211001) 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, 17006 + ... + 35603.

It is an arithmetic number, because the mean of its divisors is an integer number (64868130).

Almost surely, 2^489211091 is an apocalyptic number.

489211091 is a deficient number, since it is larger than the sum of its proper divisors (29733949).

489211091 is a wasteful number, since it uses less digits than its factorization.

489211091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53173.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 489211091 is about 22118.1168050085. The cubic root of 489211091 is about 787.9501904278.

The spelling of 489211091 in words is "four hundred eighty-nine million, two hundred eleven thousand, ninety-one".