475199999 has 4 divisors (see below), whose sum is σ = 476822136. Its totient is φ = 473577864.

The previous prime is 475199971. The next prime is 475200001. The reversal of 475199999 is 999991574.

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-475199999 is a prime.

It is a Duffinian number.

475199999 is a modest number, since divided by 99999 gives 4751 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475199969) 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, 810629 + ... + 811214.

It is an arithmetic number, because the mean of its divisors is an integer number (119205534).

Almost surely, 2^475199999 is an apocalyptic number.

475199999 is a deficient number, since it is larger than the sum of its proper divisors (1622137).

475199999 is a wasteful number, since it uses less digits than its factorization.

475199999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622136.

The product of its digits is 8266860, while the sum is 62.

The square root of 475199999 is about 21799.0825265652. The cubic root of 475199999 is about 780.3548675634.

The spelling of 475199999 in words is "four hundred seventy-five million, one hundred ninety-nine thousand, nine hundred ninety-nine".