497857844 has 24 divisors (see below), whose sum is σ = 966042336. Its totient is φ = 222588000.

The previous prime is 497857837. The next prime is 497857847. The reversal of 497857844 is 448758794.

It is a self number, because there is not a number n which added to its sum of digits gives 497857844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497857847) 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, 90062 + ... + 95429.

It is an arithmetic number, because the mean of its divisors is an integer number (40251764).

Almost surely, 2^497857844 is an apocalyptic number.

497857844 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

497857844 is a deficient number, since it is larger than the sum of its proper divisors (468184492).

497857844 is a wasteful number, since it uses less digits than its factorization.

497857844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185567 (or 185565 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 56.

The square root of 497857844 is about 22312.7282957508. The cubic root of 497857844 is about 792.5654164871.

The spelling of 497857844 in words is "four hundred ninety-seven million, eight hundred fifty-seven thousand, eight hundred forty-four".