475428427 has 2 divisors, whose sum is σ = 475428428. Its totient is φ = 475428426.

The previous prime is 475428389. The next prime is 475428433. The reversal of 475428427 is 724824574.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475428427 is a prime.

It is not a weakly prime, because it can be changed into another prime (475428227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237714213 + 237714214.

It is an arithmetic number, because the mean of its divisors is an integer number (237714214).

Almost surely, 2^475428427 is an apocalyptic number.

475428427 is a deficient number, since it is larger than the sum of its proper divisors (1).

475428427 is an equidigital number, since it uses as much as digits as its factorization.

475428427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 501760, while the sum is 43.

The square root of 475428427 is about 21804.3212918907. The cubic root of 475428427 is about 780.4798860451.

The spelling of 475428427 in words is "four hundred seventy-five million, four hundred twenty-eight thousand, four hundred twenty-seven".