492464989 has 2 divisors, whose sum is σ = 492464990. Its totient is φ = 492464988.

The previous prime is 492464969. The next prime is 492465011. The reversal of 492464989 is 989464294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419225625 + 73239364 = 20475^2 + 8558^2 .

It is a cyclic number.

It is not a de Polignac number, because 492464989 - 2⁵ = 492464957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492464969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246232494 + 246232495.

It is an arithmetic number, because the mean of its divisors is an integer number (246232495).

Almost surely, 2^492464989 is an apocalyptic number.

It is an amenable number.

492464989 is a deficient number, since it is larger than the sum of its proper divisors (1).

492464989 is an equidigital number, since it uses as much as digits as its factorization.

492464989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4478976, while the sum is 55.

The square root of 492464989 is about 22191.5521989788. The cubic root of 492464989 is about 789.6933002700.

The spelling of 492464989 in words is "four hundred ninety-two million, four hundred sixty-four thousand, nine hundred eighty-nine".