496781 has 4 divisors (see below), whose sum is σ = 498972. Its totient is φ = 494592.

The previous prime is 496763. The next prime is 496789. The reversal of 496781 is 187694.

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 434281 + 62500 = 659^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 496781 - 2¹⁰ = 495757 is a prime.

It is a super-2 number, since 2×496781² = 493582723922, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (496789) 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, 710 + ... + 1223.

It is an arithmetic number, because the mean of its divisors is an integer number (124743).

2⁴⁹⁶⁷⁸¹ is an apocalyptic number.

It is an amenable number.

496781 is a deficient number, since it is larger than the sum of its proper divisors (2191).

496781 is a wasteful number, since it uses less digits than its factorization.

496781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190.

The product of its digits is 12096, while the sum is 35.

The square root of 496781 is about 704.8269291110. The cubic root of 496781 is about 79.1993576284.

The spelling of 496781 in words is "four hundred ninety-six thousand, seven hundred eighty-one".