475564087 has 4 divisors (see below), whose sum is σ = 490904896. Its totient is φ = 460223280.

The previous prime is 475564039. The next prime is 475564093. The reversal of 475564087 is 780465574.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475564087 is a prime.

It is a super-2 number, since 2×475564087² = 452322401688287138, 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 (475564097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7670358 + ... + 7670419.

It is an arithmetic number, because the mean of its divisors is an integer number (122726224).

Almost surely, 2^475564087 is an apocalyptic number.

475564087 is a deficient number, since it is larger than the sum of its proper divisors (15340809).

475564087 is a wasteful number, since it uses less digits than its factorization.

475564087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15340808.

The product of its (nonzero) digits is 940800, while the sum is 46.

The square root of 475564087 is about 21807.4319212511. The cubic root of 475564087 is about 780.5541137144.

The spelling of 475564087 in words is "four hundred seventy-five million, five hundred sixty-four thousand, eighty-seven".