497809845 has 48 divisors (see below), whose sum is σ = 945060480. Its totient is φ = 240905088.

The previous prime is 497809831. The next prime is 497809891. The reversal of 497809845 is 548908794.

It is not a de Polignac number, because 497809845 - 2⁷ = 497809717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 497809791 and 497809800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27304 + ... + 41726.

It is an arithmetic number, because the mean of its divisors is an integer number (19688760).

Almost surely, 2^497809845 is an apocalyptic number.

497809845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

497809845 is a deficient number, since it is larger than the sum of its proper divisors (447250635).

497809845 is a wasteful number, since it uses less digits than its factorization.

497809845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14506 (or 14503 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 497809845 is about 22311.6526729868. The cubic root of 497809845 is about 792.5399449791.

The spelling of 497809845 in words is "four hundred ninety-seven million, eight hundred nine thousand, eight hundred forty-five".