470868491 has 4 divisors (see below), whose sum is σ = 471226800. Its totient is φ = 470510184.

The previous prime is 470868481. The next prime is 470868511. The reversal of 470868491 is 194868074.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194868074 = 2 ⋅97434037.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-470868491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (470868421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177176 + ... + 179813.

It is an arithmetic number, because the mean of its divisors is an integer number (117806700).

Almost surely, 2^470868491 is an apocalyptic number.

470868491 is a deficient number, since it is larger than the sum of its proper divisors (358309).

470868491 is a wasteful number, since it uses less digits than its factorization.

470868491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358308.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 470868491 is about 21699.5043952621. The cubic root of 470868491 is about 777.9766157835.

The spelling of 470868491 in words is "four hundred seventy million, eight hundred sixty-eight thousand, four hundred ninety-one".