1993307 has 2 divisors, whose sum is σ = 1993308. Its totient is φ = 1993306.

The previous prime is 1993289. The next prime is 1993319. The reversal of 1993307 is 7033991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1993307 - 2²⁰ = 944731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1993357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996653 + 996654.

It is an arithmetic number, because the mean of its divisors is an integer number (996654).

2^1993307 is an apocalyptic number.

1993307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1993307 is an equidigital number, since it uses as much as digits as its factorization.

1993307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 1993307 is about 1411.8452464771. The cubic root of 1993307 is about 125.8514037272.

The spelling of 1993307 in words is "one million, nine hundred ninety-three thousand, three hundred seven".