1669474473 has 8 divisors (see below), whose sum is σ = 2230538688. Its totient is φ = 1110696624.

The previous prime is 1669474423. The next prime is 1669474483. The reversal of 1669474473 is 3744749661.

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

It is not a de Polignac number, because 1669474473 - 2²⁰ = 1668425897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1669474423) 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, 569886 + ... + 572807.

It is an arithmetic number, because the mean of its divisors is an integer number (278817336).

Almost surely, 2^1669474473 is an apocalyptic number.

It is an amenable number.

1669474473 is a deficient number, since it is larger than the sum of its proper divisors (561064215).

1669474473 is a wasteful number, since it uses less digits than its factorization.

1669474473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143183.

The product of its digits is 3048192, while the sum is 51.

The square root of 1669474473 is about 40859.2030392175. The cubic root of 1669474473 is about 1186.2965324594.

The spelling of 1669474473 in words is "one billion, six hundred sixty-nine million, four hundred seventy-four thousand, four hundred seventy-three".