471391 has 2 divisors, whose sum is σ = 471392. Its totient is φ = 471390.

The previous prime is 471389. The next prime is 471403. The reversal of 471391 is 193174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 471391 - 2¹ = 471389 is a prime.

Together with 471389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235695 + 235696.

It is an arithmetic number, because the mean of its divisors is an integer number (235696).

2⁴⁷¹³⁹¹ is an apocalyptic number.

471391 is a deficient number, since it is larger than the sum of its proper divisors (1).

471391 is an equidigital number, since it uses as much as digits as its factorization.

471391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 25.

The square root of 471391 is about 686.5792015492. The cubic root of 471391 is about 77.8264275377.

The spelling of 471391 in words is "four hundred seventy-one thousand, three hundred ninety-one".