497319631 has 4 divisors (see below), whose sum is σ = 498632200. Its totient is φ = 496007064.

The previous prime is 497319619. The next prime is 497319653. The reversal of 497319631 is 136913794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497319631 is a prime.

It is a super-2 number, since 2×497319631² = 494653630755952322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497319611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655716 + ... + 656473.

It is an arithmetic number, because the mean of its divisors is an integer number (124658050).

Almost surely, 2^497319631 is an apocalyptic number.

497319631 is a deficient number, since it is larger than the sum of its proper divisors (1312569).

497319631 is a wasteful number, since it uses less digits than its factorization.

497319631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312568.

The product of its digits is 122472, while the sum is 43.

The square root of 497319631 is about 22300.6643623010. The cubic root of 497319631 is about 792.2797105550.

The spelling of 497319631 in words is "four hundred ninety-seven million, three hundred nineteen thousand, six hundred thirty-one".