475479621 has 48 divisors (see below), whose sum is σ = 749548800. Its totient is φ = 289529856.

The previous prime is 475479607. The next prime is 475479623. The reversal of 475479621 is 126974574.

475479621 is a `hidden beast` number, since 47 + 547 + 9 + 62 + 1 = 666.

It is not a de Polignac number, because 475479621 - 2¹³ = 475471429 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475479623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 617925 + ... + 618693.

It is an arithmetic number, because the mean of its divisors is an integer number (15615600).

Almost surely, 2^475479621 is an apocalyptic number.

It is an amenable number.

475479621 is a deficient number, since it is larger than the sum of its proper divisors (274069179).

475479621 is a wasteful number, since it uses less digits than its factorization.

475479621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 927 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 475479621 is about 21805.4952018981. The cubic root of 475479621 is about 780.5078989915.

It can be divided in two parts, 475479 and 621, that added together give a square (476100 = 690²).

The spelling of 475479621 in words is "four hundred seventy-five million, four hundred seventy-nine thousand, six hundred twenty-one".