475541869 has 4 divisors (see below), whose sum is σ = 518772960. Its totient is φ = 432310780.

The previous prime is 475541837. The next prime is 475541879. The reversal of 475541869 is 968145574.

It is a happy number.

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 475541869 - 2⁵ = 475541837 is a prime.

It is a super-2 number, since 2×475541869² = 452280138344026322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475541809) 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, 21615529 + ... + 21615550.

It is an arithmetic number, because the mean of its divisors is an integer number (129693240).

Almost surely, 2^475541869 is an apocalyptic number.

It is an amenable number.

475541869 is a deficient number, since it is larger than the sum of its proper divisors (43231091).

475541869 is a wasteful number, since it uses less digits than its factorization.

475541869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43231090.

The product of its digits is 1209600, while the sum is 49.

The square root of 475541869 is about 21806.9225018112. The cubic root of 475541869 is about 780.5419578895.

The spelling of 475541869 in words is "four hundred seventy-five million, five hundred forty-one thousand, eight hundred sixty-nine".