475571921 has 8 divisors (see below), whose sum is σ = 527311488. Its totient is φ = 425250000.

The previous prime is 475571903. The next prime is 475571927. The reversal of 475571921 is 129175574.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475571921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (475571927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353705 + ... + 355046.

It is an arithmetic number, because the mean of its divisors is an integer number (65913936).

Almost surely, 2^475571921 is an apocalyptic number.

It is an amenable number.

475571921 is a deficient number, since it is larger than the sum of its proper divisors (51739567).

475571921 is a wasteful number, since it uses less digits than its factorization.

475571921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708823.

The product of its digits is 88200, while the sum is 41.

The square root of 475571921 is about 21807.6115381763. The cubic root of 475571921 is about 780.5583997315.

The spelling of 475571921 in words is "four hundred seventy-five million, five hundred seventy-one thousand, nine hundred twenty-one".