1996345 has 8 divisors (see below), whose sum is σ = 2579976. Its totient is φ = 1474176.

The previous prime is 1996343. The next prime is 1996363. The reversal of 1996345 is 5436991.

It can be written as a sum of positive squares in 4 ways, for example, as 246016 + 1750329 = 496^2 + 1323^2 .

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 1996345 - 2¹ = 1996343 is a prime.

It is a Duffinian number.

1996345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1996343) 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 in 7 ways as a sum of consecutive naturals, for example, 15292 + ... + 15421.

It is an arithmetic number, because the mean of its divisors is an integer number (322497).

2^1996345 is an apocalyptic number.

It is an amenable number.

1996345 is a deficient number, since it is larger than the sum of its proper divisors (583631).

1996345 is a wasteful number, since it uses less digits than its factorization.

1996345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30731.

The product of its digits is 29160, while the sum is 37.

The square root of 1996345 is about 1412.9207337993. The cubic root of 1996345 is about 125.9153079977.

The spelling of 1996345 in words is "one million, nine hundred ninety-six thousand, three hundred forty-five".