1979941 has 2 divisors, whose sum is σ = 1979942. Its totient is φ = 1979940.

The previous prime is 1979911. The next prime is 1979947. The reversal of 1979941 is 1499791.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 103041 = 1370^2 + 321^2 .

It is a cyclic number.

It is not a de Polignac number, because 1979941 - 2¹⁹ = 1455653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1979894 and 1979903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1979947) 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, 989970 + 989971.

It is an arithmetic number, because the mean of its divisors is an integer number (989971).

2^1979941 is an apocalyptic number.

It is an amenable number.

1979941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1979941 is an equidigital number, since it uses as much as digits as its factorization.

1979941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 40.

The square root of 1979941 is about 1407.1037630537. The cubic root of 1979941 is about 125.5694763007.

The spelling of 1979941 in words is "one million, nine hundred seventy-nine thousand, nine hundred forty-one".