492807689 has 4 divisors (see below), whose sum is σ = 537608400. Its totient is φ = 448006980.

The previous prime is 492807673. The next prime is 492807691. The reversal of 492807689 is 986708294.

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 492807689 - 2⁴ = 492807673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 492807689.

It is not an unprimeable number, because it can be changed into a prime (492807629) 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, 22400339 + ... + 22400360.

It is an arithmetic number, because the mean of its divisors is an integer number (134402100).

Almost surely, 2^492807689 is an apocalyptic number.

It is an amenable number.

492807689 is a deficient number, since it is larger than the sum of its proper divisors (44800711).

492807689 is a wasteful number, since it uses less digits than its factorization.

492807689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44800710.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 492807689 is about 22199.2722628468. The cubic root of 492807689 is about 789.8764369049.

The spelling of 492807689 in words is "four hundred ninety-two million, eight hundred seven thousand, six hundred eighty-nine".