473669409 has 4 divisors (see below), whose sum is σ = 631559216. Its totient is φ = 315779604.

The previous prime is 473669393. The next prime is 473669423. The reversal of 473669409 is 904966374.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 473669409 - 2⁴ = 473669393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (473669459) 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, 78944899 + ... + 78944904.

It is an arithmetic number, because the mean of its divisors is an integer number (157889804).

Almost surely, 2^473669409 is an apocalyptic number.

It is an amenable number.

473669409 is a deficient number, since it is larger than the sum of its proper divisors (157889807).

473669409 is a wasteful number, since it uses less digits than its factorization.

473669409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157889806.

The product of its (nonzero) digits is 979776, while the sum is 48.

The square root of 473669409 is about 21763.9474590434. The cubic root of 473669409 is about 779.5161413952.

The spelling of 473669409 in words is "four hundred seventy-three million, six hundred sixty-nine thousand, four hundred nine".