475428491 has 2 divisors, whose sum is σ = 475428492. Its totient is φ = 475428490.

The previous prime is 475428433. The next prime is 475428509. The reversal of 475428491 is 194824574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 475428491 - 2⁶ = 475428427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (475428091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237714245 + 237714246.

It is an arithmetic number, because the mean of its divisors is an integer number (237714246).

Almost surely, 2^475428491 is an apocalyptic number.

475428491 is a deficient number, since it is larger than the sum of its proper divisors (1).

475428491 is an equidigital number, since it uses as much as digits as its factorization.

475428491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 44.

The square root of 475428491 is about 21804.3227594897. The cubic root of 475428491 is about 780.4799210666.

The spelling of 475428491 in words is "four hundred seventy-five million, four hundred twenty-eight thousand, four hundred ninety-one".