489517093 has 4 divisors (see below), whose sum is σ = 527172268. Its totient is φ = 451861920.

The previous prime is 489517087. The next prime is 489517111. The reversal of 489517093 is 390715984.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 131285764 + 358231329 = 11458^2 + 18927^2 .

It is a cyclic number.

It is not a de Polignac number, because 489517093 - 2²¹ = 487419941 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 (489517033) 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, 18827568 + ... + 18827593.

It is an arithmetic number, because the mean of its divisors is an integer number (131793067).

Almost surely, 2^489517093 is an apocalyptic number.

It is an amenable number.

489517093 is a deficient number, since it is larger than the sum of its proper divisors (37655175).

489517093 is a wasteful number, since it uses less digits than its factorization.

489517093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37655174.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 489517093 is about 22125.0331751164. The cubic root of 489517093 is about 788.1144440487.

The spelling of 489517093 in words is "four hundred eighty-nine million, five hundred seventeen thousand, ninety-three".