471997 has 2 divisors, whose sum is σ = 471998. Its totient is φ = 471996.

The previous prime is 471959. The next prime is 472019. The reversal of 471997 is 799174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290521 + 181476 = 539^2 + 426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-471997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235998 + 235999.

It is an arithmetic number, because the mean of its divisors is an integer number (235999).

2⁴⁷¹⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

471997 is a deficient number, since it is larger than the sum of its proper divisors (1).

471997 is an equidigital number, since it uses as much as digits as its factorization.

471997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 37.

The square root of 471997 is about 687.0203781548. The cubic root of 471997 is about 77.8597633596.

The spelling of 471997 in words is "four hundred seventy-one thousand, nine hundred ninety-seven".