492749 has 4 divisors (see below), whose sum is σ = 495936. Its totient is φ = 489564.

The previous prime is 492731. The next prime is 492757. The reversal of 492749 is 947294.

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, and also an emirpimes, since its reverse is a distinct semiprime: 947294 = 2 ⋅473647.

It is a cyclic number.

It is not a de Polignac number, because 492749 - 2¹⁶ = 427213 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 plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 492749.

It is not an unprimeable number, because it can be changed into a prime (492719) 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, 1349 + ... + 1674.

It is an arithmetic number, because the mean of its divisors is an integer number (123984).

2⁴⁹²⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

492749 is a deficient number, since it is larger than the sum of its proper divisors (3187).

492749 is a wasteful number, since it uses less digits than its factorization.

492749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186.

The product of its digits is 18144, while the sum is 35.

The square root of 492749 is about 701.9608251178. The cubic root of 492749 is about 78.9845079914.

The spelling of 492749 in words is "four hundred ninety-two thousand, seven hundred forty-nine".