496581 has 4 divisors (see below), whose sum is σ = 662112. Its totient is φ = 331052.

The previous prime is 496579. The next prime is 496583. The reversal of 496581 is 185694.

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.

It is an interprime number because it is at equal distance from previous prime (496579) and next prime (496583).

It is a cyclic number.

It is not a de Polignac number, because 496581 - 2¹ = 496579 is a prime.

It is a super-2 number, since 2×496581² = 493185379122, which contains 22 as substring.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

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 496581.

It is not an unprimeable number, because it can be changed into a prime (496583) 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, 82761 + ... + 82766.

It is an arithmetic number, because the mean of its divisors is an integer number (165528).

2⁴⁹⁶⁵⁸¹ is an apocalyptic number.

It is an amenable number.

496581 is a deficient number, since it is larger than the sum of its proper divisors (165531).

496581 is a wasteful number, since it uses less digits than its factorization.

496581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165530.

The product of its digits is 8640, while the sum is 33.

The square root of 496581 is about 704.6850360267. The cubic root of 496581 is about 79.1887278622.

The spelling of 496581 in words is "four hundred ninety-six thousand, five hundred eighty-one".