475278943 has 2 divisors, whose sum is σ = 475278944. Its totient is φ = 475278942.

The previous prime is 475278917. The next prime is 475278953. The reversal of 475278943 is 349872574.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 475278943 - 2²⁵ = 441724511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475278953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237639471 + 237639472.

It is an arithmetic number, because the mean of its divisors is an integer number (237639472).

Almost surely, 2^475278943 is an apocalyptic number.

475278943 is a deficient number, since it is larger than the sum of its proper divisors (1).

475278943 is an equidigital number, since it uses as much as digits as its factorization.

475278943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 49.

The square root of 475278943 is about 21800.8931697763. The cubic root of 475278943 is about 780.3980780879.

The spelling of 475278943 in words is "four hundred seventy-five million, two hundred seventy-eight thousand, nine hundred forty-three".