471649 has 2 divisors, whose sum is σ = 471650. Its totient is φ = 471648.

The previous prime is 471641. The next prime is 471659. The reversal of 471649 is 946174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431649 + 40000 = 657^2 + 200^2 .

It is a cyclic number.

It is not a de Polignac number, because 471649 - 2³ = 471641 is a prime.

It is a Chen prime.

471649 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 471649.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (471641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235824 + 235825.

It is an arithmetic number, because the mean of its divisors is an integer number (235825).

2⁴⁷¹⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

471649 is a deficient number, since it is larger than the sum of its proper divisors (1).

471649 is an equidigital number, since it uses as much as digits as its factorization.

471649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 471649 is about 686.7670638579. The cubic root of 471649 is about 77.8406235068.

The spelling of 471649 in words is "four hundred seventy-one thousand, six hundred forty-nine".