492649 has 4 divisors (see below), whose sum is σ = 497536. Its totient is φ = 487764.

The previous prime is 492647. The next prime is 492659. The reversal of 492649 is 946294.

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: 946294 = 2 ⋅473147.

It is a cyclic number.

It is not a de Polignac number, because 492649 - 2¹ = 492647 is a prime.

It is a Duffinian number.

492649 is a lucky number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (492641) 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, 2289 + ... + 2494.

It is an arithmetic number, because the mean of its divisors is an integer number (124384).

2⁴⁹²⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

492649 is a deficient number, since it is larger than the sum of its proper divisors (4887).

492649 is a wasteful number, since it uses less digits than its factorization.

492649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4886.

The product of its digits is 15552, while the sum is 34.

The square root of 492649 is about 701.8895924574. The cubic root of 492649 is about 78.9791645101.

The spelling of 492649 in words is "four hundred ninety-two thousand, six hundred forty-nine".