475207643 has 2 divisors, whose sum is σ = 475207644. Its totient is φ = 475207642.

The previous prime is 475207639. The next prime is 475207661. The reversal of 475207643 is 346702574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 475207643 - 2² = 475207639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 475207597 and 475207606.

It is not a weakly prime, because it can be changed into another prime (475203643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237603821 + 237603822.

It is an arithmetic number, because the mean of its divisors is an integer number (237603822).

Almost surely, 2^475207643 is an apocalyptic number.

475207643 is a deficient number, since it is larger than the sum of its proper divisors (1).

475207643 is an equidigital number, since it uses as much as digits as its factorization.

475207643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 475207643 is about 21799.2578543399. The cubic root of 475207643 is about 780.3590517670.

The spelling of 475207643 in words is "four hundred seventy-five million, two hundred seven thousand, six hundred forty-three".