1873979 has 2 divisors, whose sum is σ = 1873980. Its totient is φ = 1873978.

The previous prime is 1873969. The next prime is 1874003. The reversal of 1873979 is 9793781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1873979 - 2²⁰ = 825403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1873969) 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, 936989 + 936990.

It is an arithmetic number, because the mean of its divisors is an integer number (936990).

2^1873979 is an apocalyptic number.

1873979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1873979 is an equidigital number, since it uses as much as digits as its factorization.

1873979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 44.

The square root of 1873979 is about 1368.9335265089. The cubic root of 1873979 is about 123.2882174080.

The spelling of 1873979 in words is "one million, eight hundred seventy-three thousand, nine hundred seventy-nine".