497821004 has 12 divisors (see below), whose sum is σ = 871444728. Its totient is φ = 248836800.

The previous prime is 497821003. The next prime is 497821007. The reversal of 497821004 is 400128794.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (497821003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502 + ... + 31589.

It is an arithmetic number, because the mean of its divisors is an integer number (72620394).

Almost surely, 2^497821004 is an apocalyptic number.

It is an amenable number.

497821004 is a deficient number, since it is larger than the sum of its proper divisors (373623724).

497821004 is a wasteful number, since it uses less digits than its factorization.

497821004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36856 (or 36854 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 497821004 is about 22311.9027427066. The cubic root of 497821004 is about 792.5458668435.

Adding to 497821004 its reverse (400128794), we get a palindrome (897949798).

The spelling of 497821004 in words is "four hundred ninety-seven million, eight hundred twenty-one thousand, four".