492989 has 6 divisors (see below), whose sum is σ = 573534. Its totient is φ = 422520.

The previous prime is 492979. The next prime is 493001. The reversal of 492989 is 989294.

It can be written as a sum of positive squares in only one way, i.e., 432964 + 60025 = 658^2 + 245^2 .

It is not a de Polignac number, because 492989 - 2¹² = 488893 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4982 + ... + 5079.

It is an arithmetic number, because the mean of its divisors is an integer number (95589).

2⁴⁹²⁹⁸⁹ is an apocalyptic number.

492989 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

492989 is a deficient number, since it is larger than the sum of its proper divisors (80545).

492989 is a wasteful number, since it uses less digits than its factorization.

492989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10075 (or 10068 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 492989 is about 702.1317540177. The cubic root of 492989 is about 78.9973293975.

The spelling of 492989 in words is "four hundred ninety-two thousand, nine hundred eighty-nine".