475403643 has 48 divisors (see below), whose sum is σ = 809434080. Its totient is φ = 265075200.

The previous prime is 475403633. The next prime is 475403689. The reversal of 475403643 is 346304574.

It is a happy number.

475403643 is a `hidden beast` number, since 4 + 7 + 5 + 4 + 0 + 3 + 643 = 666.

It is not a de Polignac number, because 475403643 - 2⁵ = 475403611 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 475403598 and 475403607.

It is not an unprimeable number, because it can be changed into a prime (475403633) 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, 670173 + ... + 670881.

It is an arithmetic number, because the mean of its divisors is an integer number (16863210).

Almost surely, 2^475403643 is an apocalyptic number.

475403643 is a deficient number, since it is larger than the sum of its proper divisors (334030437).

475403643 is a wasteful number, since it uses less digits than its factorization.

475403643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

The square root of 475403643 is about 21803.7529567733. The cubic root of 475403643 is about 780.4663237165.

The spelling of 475403643 in words is "four hundred seventy-five million, four hundred three thousand, six hundred forty-three".