497947187 has 16 divisors (see below), whose sum is σ = 542505600. Its totient is φ = 455236608.

The previous prime is 497947183. The next prime is 497947189. The reversal of 497947187 is 781749794.

It is not a de Polignac number, because 497947187 - 2² = 497947183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497947183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107189 + ... + 111737.

It is an arithmetic number, because the mean of its divisors is an integer number (33906600).

Almost surely, 2^497947187 is an apocalyptic number.

497947187 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

497947187 is a deficient number, since it is larger than the sum of its proper divisors (44558413).

497947187 is a wasteful number, since it uses less digits than its factorization.

497947187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4750.

The product of its digits is 3556224, while the sum is 56.

The square root of 497947187 is about 22314.7302694879. The cubic root of 497947187 is about 792.6128235515.

The spelling of 497947187 in words is "four hundred ninety-seven million, nine hundred forty-seven thousand, one hundred eighty-seven".