475907897 has 2 divisors, whose sum is σ = 475907898. Its totient is φ = 475907896.

The previous prime is 475907891. The next prime is 475907921. The reversal of 475907897 is 798709574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399240361 + 76667536 = 19981^2 + 8756^2 .

It is a cyclic number.

It is not a de Polignac number, because 475907897 - 2⁶ = 475907833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (475907891) 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, 237953948 + 237953949.

It is an arithmetic number, because the mean of its divisors is an integer number (237953949).

Almost surely, 2^475907897 is an apocalyptic number.

It is an amenable number.

475907897 is a deficient number, since it is larger than the sum of its proper divisors (1).

475907897 is an equidigital number, since it uses as much as digits as its factorization.

475907897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4445280, while the sum is 56.

The square root of 475907897 is about 21815.3133601147. The cubic root of 475907897 is about 780.7421694515.

The spelling of 475907897 in words is "four hundred seventy-five million, nine hundred seven thousand, eight hundred ninety-seven".