1872943 has 2 divisors, whose sum is σ = 1872944. Its totient is φ = 1872942.

The previous prime is 1872929. The next prime is 1872953. The reversal of 1872943 is 3492781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1872943 - 2⁵ = 1872911 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1872899 and 1872908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1872953) 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 as a sum of consecutive naturals, namely, 936471 + 936472.

It is an arithmetic number, because the mean of its divisors is an integer number (936472).

2^1872943 is an apocalyptic number.

1872943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1872943 is an equidigital number, since it uses as much as digits as its factorization.

1872943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 1872943 is about 1368.5550774448. Note that the first 3 decimals coincide. The cubic root of 1872943 is about 123.2654938987.

The spelling of 1872943 in words is "one million, eight hundred seventy-two thousand, nine hundred forty-three".