471497791 has 2 divisors, whose sum is σ = 471497792. Its totient is φ = 471497790.

The previous prime is 471497783. The next prime is 471497797. The reversal of 471497791 is 197794174.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 471497791 - 2³ = 471497783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471497797) 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, 235748895 + 235748896.

It is an arithmetic number, because the mean of its divisors is an integer number (235748896).

Almost surely, 2^471497791 is an apocalyptic number.

471497791 is a deficient number, since it is larger than the sum of its proper divisors (1).

471497791 is an equidigital number, since it uses as much as digits as its factorization.

471497791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 49.

The square root of 471497791 is about 21713.9998848669. Note that the first 3 decimals coincide. The cubic root of 471497791 is about 778.3230414152.

The spelling of 471497791 in words is "four hundred seventy-one million, four hundred ninety-seven thousand, seven hundred ninety-one".