497905818 has 64 divisors (see below), whose sum is σ = 1071636480. Its totient is φ = 153921600.

The previous prime is 497905699. The next prime is 497905823. The reversal of 497905818 is 818509794.

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, 488113 + ... + 489131.

It is an arithmetic number, because the mean of its divisors is an integer number (16744320).

Almost surely, 2^497905818 is an apocalyptic number.

497905818 is an abundant number, since it is smaller than the sum of its proper divisors (573730662).

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

497905818 is a wasteful number, since it uses less digits than its factorization.

497905818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 497905818 is about 22313.8033064738. The cubic root of 497905818 is about 792.5908730925.

The spelling of 497905818 in words is "four hundred ninety-seven million, nine hundred five thousand, eight hundred eighteen".