1662343 has 8 divisors (see below), whose sum is σ = 1718208. Its totient is φ = 1607424.

The previous prime is 1662341. The next prime is 1662347. The reversal of 1662343 is 3432661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1662343 - 2¹ = 1662341 is a prime.

It is a d-powerful number, because it can be written as 1 + 6³ + 6³ + 2¹¹ + 3 + 4⁸ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5155 + ... + 5467.

It is an arithmetic number, because the mean of its divisors is an integer number (214776).

2^1662343 is an apocalyptic number.

1662343 is a deficient number, since it is larger than the sum of its proper divisors (55865).

1662343 is a wasteful number, since it uses less digits than its factorization.

1662343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its digits is 2592, while the sum is 25.

The square root of 1662343 is about 1289.3188123967. The cubic root of 1662343 is about 118.4604958910.

The spelling of 1662343 in words is "one million, six hundred sixty-two thousand, three hundred forty-three".