493820187 has 16 divisors (see below), whose sum is σ = 767846400. Its totient is φ = 282182376.

The previous prime is 493820179. The next prime is 493820227. The reversal of 493820187 is 781028394.

It is not a de Polignac number, because 493820187 - 2³ = 493820179 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (493820137) by changing a digit.

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, 238923 + ... + 240980.

It is an arithmetic number, because the mean of its divisors is an integer number (47990400).

Almost surely, 2^493820187 is an apocalyptic number.

493820187 is a deficient number, since it is larger than the sum of its proper divisors (274026213).

493820187 is an equidigital number, since it uses as much as digits as its factorization.

493820187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479927 (or 479913 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 493820187 is about 22222.0653180572. The cubic root of 493820187 is about 790.4170137176.

The spelling of 493820187 in words is "four hundred ninety-three million, eight hundred twenty thousand, one hundred eighty-seven".