475908905 has 8 divisors (see below), whose sum is σ = 573607872. Its totient is φ = 379049008.

The previous prime is 475908883. The next prime is 475908943. The reversal of 475908905 is 509809574.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 475908905 - 2⁶ = 475908841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 475908905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208517 + ... + 210786.

It is an arithmetic number, because the mean of its divisors is an integer number (71700984).

Almost surely, 2^475908905 is an apocalyptic number.

It is an amenable number.

475908905 is a deficient number, since it is larger than the sum of its proper divisors (97698967).

475908905 is a wasteful number, since it uses less digits than its factorization.

475908905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419535.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 475908905 is about 21815.3364631399. The cubic root of 475908905 is about 780.7427206699.

The spelling of 475908905 in words is "four hundred seventy-five million, nine hundred eight thousand, nine hundred five".