497485820 has 24 divisors (see below), whose sum is σ = 1125083904. Its totient is φ = 183686976.

The previous prime is 497485801. The next prime is 497485829. The reversal of 497485820 is 28584794.

It is a happy number.

It is a super-2 number, since 2×497485820² = 494984282202144800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497485829) 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, 956444 + ... + 956963.

It is an arithmetic number, because the mean of its divisors is an integer number (46878496).

Almost surely, 2^497485820 is an apocalyptic number.

It is an amenable number.

497485820 is an abundant number, since it is smaller than the sum of its proper divisors (627598084).

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

497485820 is a wasteful number, since it uses less digits than its factorization.

497485820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913429 (or 1913427 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 497485820 is about 22304.3901508201. The cubic root of 497485820 is about 792.3679526035.

The spelling of 497485820 in words is "four hundred ninety-seven million, four hundred eighty-five thousand, eight hundred twenty".