473191913 has 4 divisors (see below), whose sum is σ = 479674068. Its totient is φ = 466709760.

The previous prime is 473191891. The next prime is 473191919. The reversal of 473191913 is 319191374.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 288558169 + 184633744 = 16987^2 + 13588^2 .

It is a cyclic number.

It is not a de Polignac number, because 473191913 - 2²² = 468997609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (473191919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3240968 + ... + 3241113.

It is an arithmetic number, because the mean of its divisors is an integer number (119918517).

Almost surely, 2^473191913 is an apocalyptic number.

It is an amenable number.

473191913 is a deficient number, since it is larger than the sum of its proper divisors (6482155).

473191913 is an equidigital number, since it uses as much as digits as its factorization.

473191913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6482154.

The product of its digits is 20412, while the sum is 38.

The square root of 473191913 is about 21752.9748080579. The cubic root of 473191913 is about 779.2541154781.

The spelling of 473191913 in words is "four hundred seventy-three million, one hundred ninety-one thousand, nine hundred thirteen".