992459 has 4 divisors (see below), whose sum is σ = 1068816. Its totient is φ = 916104.

The previous prime is 992449. The next prime is 992461. The reversal of 992459 is 954299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954299 = 43 ⋅22193.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-992459 is a prime.

It is an Ulam number.

It is a Duffinian 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, 38159 + ... + 38184.

It is an arithmetic number, because the mean of its divisors is an integer number (267204).

2⁹⁹²⁴⁵⁹ is an apocalyptic number.

992459 is a deficient number, since it is larger than the sum of its proper divisors (76357).

992459 is a wasteful number, since it uses less digits than its factorization.

992459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76356.

The product of its digits is 29160, while the sum is 38.

The square root of 992459 is about 996.2223647359. Note that the first 3 decimals coincide. The cubic root of 992459 is about 99.7479988208.

The spelling of 992459 in words is "nine hundred ninety-two thousand, four hundred fifty-nine".