1662341 has 2 divisors, whose sum is σ = 1662342. Its totient is φ = 1662340.

The previous prime is 1662319. The next prime is 1662347. The reversal of 1662341 is 1432661.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1331716 + 330625 = 1154^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1662341 - 2¹⁸ = 1400197 is a prime.

It is a d-powerful number, because it can be written as 1 + 6³ + 6³ + 2¹¹ + 3¹³ + 4⁸ + 1 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1662347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831170 + 831171.

It is an arithmetic number, because the mean of its divisors is an integer number (831171).

2^1662341 is an apocalyptic number.

It is an amenable number.

1662341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662341 is an equidigital number, since it uses as much as digits as its factorization.

1662341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 1662341 is about 1289.3180367931. The cubic root of 1662341 is about 118.4604483836.

The spelling of 1662341 in words is "one million, six hundred sixty-two thousand, three hundred forty-one".