470490187 has 4 divisors (see below), whose sum is σ = 483206176. Its totient is φ = 457774200.

The previous prime is 470490161. The next prime is 470490191. The reversal of 470490187 is 781094074.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 781094074 = 2 ⋅390547037.

It is a cyclic number.

It is not a de Polignac number, because 470490187 - 2²⁷ = 336272459 is a prime.

It is a super-2 number, since 2×470490187² = 442722032126589938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (470490887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6357939 + ... + 6358012.

It is an arithmetic number, because the mean of its divisors is an integer number (120801544).

Almost surely, 2^470490187 is an apocalyptic number.

470490187 is a deficient number, since it is larger than the sum of its proper divisors (12715989).

470490187 is a wasteful number, since it uses less digits than its factorization.

470490187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12715988.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 470490187 is about 21690.7857626228. The cubic root of 470490187 is about 777.7682132785.

The spelling of 470490187 in words is "four hundred seventy million, four hundred ninety thousand, one hundred eighty-seven".