475438867 has 4 divisors (see below), whose sum is σ = 475547976. Its totient is φ = 475329760.

The previous prime is 475438849. The next prime is 475438883. The reversal of 475438867 is 768834574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768834574 = 2 ⋅384417287.

It is a cyclic number.

It is not a de Polignac number, because 475438867 - 2⁷ = 475438739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475438837) 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, 47734 + ... + 56827.

It is an arithmetic number, because the mean of its divisors is an integer number (118886994).

Almost surely, 2^475438867 is an apocalyptic number.

475438867 is a deficient number, since it is larger than the sum of its proper divisors (109109).

475438867 is a wasteful number, since it uses less digits than its factorization.

475438867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109108.

The product of its digits is 4515840, while the sum is 52.

The square root of 475438867 is about 21804.5606926624. The cubic root of 475438867 is about 780.4855988926.

The spelling of 475438867 in words is "four hundred seventy-five million, four hundred thirty-eight thousand, eight hundred sixty-seven".