497977980 has 48 divisors (see below), whose sum is σ = 1397329920. Its totient is φ = 132509248.

The previous prime is 497977951. The next prime is 497977993. The reversal of 497977980 is 89779794.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20077 + ... + 37403.

It is an arithmetic number, because the mean of its divisors is an integer number (29111040).

Almost surely, 2^497977980 is an apocalyptic number.

It is an amenable number.

497977980 is an abundant number, since it is smaller than the sum of its proper divisors (899351940).

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

497977980 is a wasteful number, since it uses less digits than its factorization.

497977980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17818 (or 17816 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 60.

The square root of 497977980 is about 22315.4202290703. The cubic root of 497977980 is about 792.6291615784.

The spelling of 497977980 in words is "four hundred ninety-seven million, nine hundred seventy-seven thousand, nine hundred eighty".