805492 has 12 divisors (see below), whose sum is σ = 1416100. Its totient is φ = 400896.

The previous prime is 805487. The next prime is 805499. The reversal of 805492 is 294508.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 729316 + 76176 = 854^2 + 276^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 805492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805499) by changing a digit.

805492 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108 + ... + 1684.

2⁸⁰⁵⁴⁹² is an apocalyptic number.

It is an amenable number.

805492 is a deficient number, since it is larger than the sum of its proper divisors (610608).

805492 is a wasteful number, since it uses less digits than its factorization.

805492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 805492 is about 897.4920612462. The cubic root of 805492 is about 93.0437224560.

The spelling of 805492 in words is "eight hundred five thousand, four hundred ninety-two".