1970843 has 4 divisors (see below), whose sum is σ = 2252400. Its totient is φ = 1689288.

The previous prime is 1970809. The next prime is 1970867. The reversal of 1970843 is 3480791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1970843 - 2¹⁰ = 1969819 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970873) by changing a digit.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140768 + ... + 140781.

It is an arithmetic number, because the mean of its divisors is an integer number (563100).

2^1970843 is an apocalyptic number.

1970843 is a deficient number, since it is larger than the sum of its proper divisors (281557).

1970843 is an equidigital number, since it uses as much as digits as its factorization.

1970843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281556.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1970843 is about 1403.8671589577. The cubic root of 1970843 is about 125.3768467505.

The spelling of 1970843 in words is "one million, nine hundred seventy thousand, eight hundred forty-three".