992489 has 4 divisors (see below), whose sum is σ = 999300. Its totient is φ = 985680.

The previous prime is 992461. The next prime is 992513. The reversal of 992489 is 984299.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 547600 + 444889 = 740^2 + 667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-992489 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (992429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3182 + ... + 3479.

It is an arithmetic number, because the mean of its divisors is an integer number (249825).

2⁹⁹²⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

992489 is a deficient number, since it is larger than the sum of its proper divisors (6811).

992489 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 992489 = (289994)₁₃.

992489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6810.

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

The square root of 992489 is about 996.2374215015. The cubic root of 992489 is about 99.7490038698.

The spelling of 992489 in words is "nine hundred ninety-two thousand, four hundred eighty-nine".