497931021 has 48 divisors (see below), whose sum is σ = 855149568. Its totient is φ = 273196800.

The previous prime is 497931011. The next prime is 497931047. The reversal of 497931021 is 120139794.

It is not a de Polignac number, because 497931021 - 2⁵ = 497930989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497931011) 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 47 ways as a sum of consecutive naturals, for example, 266631 + ... + 268491.

It is an arithmetic number, because the mean of its divisors is an integer number (17815616).

Almost surely, 2^497931021 is an apocalyptic number.

It is an amenable number.

497931021 is a deficient number, since it is larger than the sum of its proper divisors (357218547).

497931021 is a wasteful number, since it uses less digits than its factorization.

497931021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042 (or 2039 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 497931021 is about 22314.3680394494. The cubic root of 497931021 is about 792.6042459902.

The spelling of 497931021 in words is "four hundred ninety-seven million, nine hundred thirty-one thousand, twenty-one".