475172867 has 16 divisors (see below), whose sum is σ = 539492352. Its totient is φ = 415424160.

The previous prime is 475172861. The next prime is 475172879. The reversal of 475172867 is 768271574.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 475172867 - 2²⁰ = 474124291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475172861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6398 + ... + 31484.

It is an arithmetic number, because the mean of its divisors is an integer number (33718272).

Almost surely, 2^475172867 is an apocalyptic number.

475172867 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

475172867 is a deficient number, since it is larger than the sum of its proper divisors (64319485).

475172867 is a wasteful number, since it uses less digits than its factorization.

475172867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25178.

The product of its digits is 658560, while the sum is 47.

The square root of 475172867 is about 21798.4601979131. The cubic root of 475172867 is about 780.3400155774.

The spelling of 475172867 in words is "four hundred seventy-five million, one hundred seventy-two thousand, eight hundred sixty-seven".