497801000 has 32 divisors (see below), whose sum is σ = 1164856680. Its totient is φ = 199120000.

The previous prime is 497800949. The next prime is 497801009. The reversal of 497801000 is 108794.

It can be written as a sum of positive squares in 4 ways, for example, as 281769796 + 216031204 = 16786^2 + 14698^2 .

It is not an unprimeable number, because it can be changed into a prime (497801009) 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 7 ways as a sum of consecutive naturals, for example, 247901 + ... + 249900.

Almost surely, 2^497801000 is an apocalyptic number.

497801000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

497801000 is an abundant number, since it is smaller than the sum of its proper divisors (667055680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

497801000 is a wasteful number, since it uses less digits than its factorization.

497801000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497822 (or 497808 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 497801000 is about 22311.4544572961. The cubic root of 497801000 is about 792.5352510467.

Adding to 497801000 its reverse (108794), we get a palindrome (497909794).

The spelling of 497801000 in words is "four hundred ninety-seven million, eight hundred one thousand".