490784187 has 8 divisors (see below), whose sum is σ = 666725904. Its totient is φ = 321015968.

The previous prime is 490784171. The next prime is 490784191. The reversal of 490784187 is 781487094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 490784187 - 2⁴ = 490784171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490784137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543188 + ... + 1543505.

It is an arithmetic number, because the mean of its divisors is an integer number (83340738).

Almost surely, 2^490784187 is an apocalyptic number.

490784187 is a deficient number, since it is larger than the sum of its proper divisors (175941717).

490784187 is a wasteful number, since it uses less digits than its factorization.

490784187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086749.

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 490784187 is about 22153.6495187588. The cubic root of 490784187 is about 788.7938583194.

The spelling of 490784187 in words is "four hundred ninety million, seven hundred eighty-four thousand, one hundred eighty-seven".