473745309 has 8 divisors (see below), whose sum is σ = 638758080. Its totient is φ = 312281376.

The previous prime is 473745281. The next prime is 473745343. The reversal of 473745309 is 903547374.

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

It is not a de Polignac number, because 473745309 - 2²⁰ = 472696733 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (473745709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886897 + ... + 887430.

It is an arithmetic number, because the mean of its divisors is an integer number (79844760).

Almost surely, 2^473745309 is an apocalyptic number.

It is an amenable number.

473745309 is a deficient number, since it is larger than the sum of its proper divisors (165012771).

473745309 is a wasteful number, since it uses less digits than its factorization.

473745309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774419.

The product of its (nonzero) digits is 317520, while the sum is 42.

The square root of 473745309 is about 21765.6910986075. The cubic root of 473745309 is about 779.5577752957.

The spelling of 473745309 in words is "four hundred seventy-three million, seven hundred forty-five thousand, three hundred nine".