497881 has 4 divisors (see below), whose sum is σ = 519552. Its totient is φ = 476212.

The previous prime is 497873. The next prime is 497899. The reversal of 497881 is 188794.

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, and also an emirpimes, since its reverse is a distinct semiprime: 188794 = 2 ⋅94397.

It is a cyclic number.

It is not a de Polignac number, because 497881 - 2³ = 497873 is a prime.

It is a super-2 number, since 2×497881² = 495770980322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 497881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497801) 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, 10801 + ... + 10846.

It is an arithmetic number, because the mean of its divisors is an integer number (129888).

2⁴⁹⁷⁸⁸¹ is an apocalyptic number.

It is an amenable number.

497881 is a deficient number, since it is larger than the sum of its proper divisors (21671).

497881 is a wasteful number, since it uses less digits than its factorization.

497881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21670.

The product of its digits is 16128, while the sum is 37.

The square root of 497881 is about 705.6068310327. The cubic root of 497881 is about 79.2577704038.

It can be divided in two parts, 497 and 881, that added together give a triangular number (1378 = T₅₂).

The spelling of 497881 in words is "four hundred ninety-seven thousand, eight hundred eighty-one".