469856643 has 8 divisors (see below), whose sum is σ = 659448000. Its totient is φ = 296751528.

The previous prime is 469856617. The next prime is 469856663. The reversal of 469856643 is 346658964.

It is a happy number.

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

It is not a de Polignac number, because 469856643 - 2¹² = 469852547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (469856663) 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 7 ways as a sum of consecutive naturals, for example, 4121493 + ... + 4121606.

It is an arithmetic number, because the mean of its divisors is an integer number (82431000).

Almost surely, 2^469856643 is an apocalyptic number.

469856643 is a deficient number, since it is larger than the sum of its proper divisors (189591357).

469856643 is a wasteful number, since it uses less digits than its factorization.

469856643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243121.

The product of its digits is 3732480, while the sum is 51.

The square root of 469856643 is about 21676.1768538642. The cubic root of 469856643 is about 777.4189522049.

It can be divided in two parts, 46985 and 6643, that added together give a triangular number (53628 = T₃₂₇).

The spelling of 469856643 in words is "four hundred sixty-nine million, eight hundred fifty-six thousand, six hundred forty-three".