497816863 has 8 divisors (see below), whose sum is σ = 508321008. Its totient is φ = 487353984.

The previous prime is 497816827. The next prime is 497816873. The reversal of 497816863 is 368618794.

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 not a de Polignac number, because 497816863 - 2⁹ = 497816351 is a prime.

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 497816863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497816873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14695 + ... + 34807.

It is an arithmetic number, because the mean of its divisors is an integer number (63540126).

Almost surely, 2^497816863 is an apocalyptic number.

497816863 is a deficient number, since it is larger than the sum of its proper divisors (10504145).

497816863 is a wasteful number, since it uses less digits than its factorization.

497816863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20633.

The product of its digits is 1741824, while the sum is 52.

The square root of 497816863 is about 22311.8099445114. The cubic root of 497816863 is about 792.5436693056.

It can be divided in two parts, 49781 and 6863, that added together give a square (56644 = 238²).

The spelling of 497816863 in words is "four hundred ninety-seven million, eight hundred sixteen thousand, eight hundred sixty-three".