1967243 has 2 divisors, whose sum is σ = 1967244. Its totient is φ = 1967242.

The previous prime is 1967239. The next prime is 1967261. The reversal of 1967243 is 3427691.

It is a weak prime.

It is an emirp because it is prime and its reverse (3427691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1967243 - 2² = 1967239 is a prime.

It is not a weakly prime, because it can be changed into another prime (1967263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983621 + 983622.

It is an arithmetic number, because the mean of its divisors is an integer number (983622).

2^1967243 is an apocalyptic number.

1967243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1967243 is an equidigital number, since it uses as much as digits as its factorization.

1967243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 1967243 is about 1402.5844003125. The cubic root of 1967243 is about 125.3004612058.

The spelling of 1967243 in words is "one million, nine hundred sixty-seven thousand, two hundred forty-three".