475998645 has 16 divisors (see below), whose sum is σ = 786166272. Its totient is φ = 245676480.

The previous prime is 475998637. The next prime is 475998661. The reversal of 475998645 is 546899574.

It is not a de Polignac number, because 475998645 - 2³ = 475998637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511362 + ... + 512291.

It is an arithmetic number, because the mean of its divisors is an integer number (49135392).

Almost surely, 2^475998645 is an apocalyptic number.

It is an amenable number.

475998645 is a deficient number, since it is larger than the sum of its proper divisors (310167627).

475998645 is a wasteful number, since it uses less digits than its factorization.

475998645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023692.

The product of its digits is 10886400, while the sum is 57.

The square root of 475998645 is about 21817.3931760877. The cubic root of 475998645 is about 780.7917912992.

The spelling of 475998645 in words is "four hundred seventy-five million, nine hundred ninety-eight thousand, six hundred forty-five".