492791589 has 18 divisors (see below), whose sum is σ = 715452530. Its totient is φ = 326854656.

The previous prime is 492791573. The next prime is 492791599. The reversal of 492791589 is 985197294.

492791589 is a `hidden beast` number, since 492 + 79 + 1 + 5 + 89 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 387893025 + 104898564 = 19695^2 + 10242^2 .

It is not a de Polignac number, because 492791589 - 2⁴ = 492791573 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 (492791599) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 594027 + ... + 594855.

Almost surely, 2^492791589 is an apocalyptic number.

It is an amenable number.

492791589 is a deficient number, since it is larger than the sum of its proper divisors (222660941).

492791589 is an equidigital number, since it uses as much as digits as its factorization.

492791589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1089 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 492791589 is about 22198.9096353852. The cubic root of 492791589 is about 789.8678350714.

The spelling of 492791589 in words is "four hundred ninety-two million, seven hundred ninety-one thousand, five hundred eighty-nine".