497889870 has 64 divisors (see below), whose sum is σ = 1263790080. Its totient is φ = 125186688.

The previous prime is 497889817. The next prime is 497889881. The reversal of 497889870 is 78988794.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125152 + ... + 129068.

It is an arithmetic number, because the mean of its divisors is an integer number (19746720).

Almost surely, 2^497889870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 497889870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631895040).

497889870 is an abundant number, since it is smaller than the sum of its proper divisors (765900210).

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

497889870 is a wasteful number, since it uses less digits than its factorization.

497889870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169.

The product of its (nonzero) digits is 8128512, while the sum is 60.

The square root of 497889870 is about 22313.4459463347. The cubic root of 497889870 is about 792.5824107329.

The spelling of 497889870 in words is "four hundred ninety-seven million, eight hundred eighty-nine thousand, eight hundred seventy".