1653343 has 2 divisors, whose sum is σ = 1653344. Its totient is φ = 1653342.

The previous prime is 1653341. The next prime is 1653347. The reversal of 1653343 is 3433561.

It is a weak prime.

It is an emirp because it is prime and its reverse (3433561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1653343 - 2¹ = 1653341 is a prime.

Together with 1653341, it forms a pair of twin primes.

1653343 is a lucky number.

It is equal to p₁₂₄₈₇₃ and since 1653343 and 124873 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1653341) 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, 826671 + 826672.

It is an arithmetic number, because the mean of its divisors is an integer number (826672).

2^1653343 is an apocalyptic number.

1653343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653343 is an equidigital number, since it uses as much as digits as its factorization.

1653343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 25.

The square root of 1653343 is about 1285.8238604101. The cubic root of 1653343 is about 118.2463254255.

The spelling of 1653343 in words is "one million, six hundred fifty-three thousand, three hundred forty-three".