497643943 has 8 divisors (see below), whose sum is σ = 508557312. Its totient is φ = 486744216.

The previous prime is 497643931. The next prime is 497643959. The reversal of 497643943 is 349346794.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497643943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497643043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112846 + ... + 117172.

It is an arithmetic number, because the mean of its divisors is an integer number (63569664).

Almost surely, 2^497643943 is an apocalyptic number.

497643943 is a deficient number, since it is larger than the sum of its proper divisors (10913369).

497643943 is a wasteful number, since it uses less digits than its factorization.

497643943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6821.

The product of its digits is 1959552, while the sum is 49.

The square root of 497643943 is about 22307.9345301173. The cubic root of 497643943 is about 792.4518935727.

The spelling of 497643943 in words is "four hundred ninety-seven million, six hundred forty-three thousand, nine hundred forty-three".