1995967 has 2 divisors, whose sum is σ = 1995968. Its totient is φ = 1995966.

The previous prime is 1995947. The next prime is 1995971. The reversal of 1995967 is 7695991.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1995967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1995937) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997983 + 997984.

It is an arithmetic number, because the mean of its divisors is an integer number (997984).

2^1995967 is an apocalyptic number.

1995967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1995967 is an equidigital number, since it uses as much as digits as its factorization.

1995967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153090, while the sum is 46.

The square root of 1995967 is about 1412.7869620010. The cubic root of 1995967 is about 125.9073603081.

The spelling of 1995967 in words is "one million, nine hundred ninety-five thousand, nine hundred sixty-seven".