943693 has 2 divisors, whose sum is σ = 943694. Its totient is φ = 943692.

The previous prime is 943651. The next prime is 943699. The reversal of 943693 is 396349.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 550564 + 393129 = 742^2 + 627^2 .

It is an emirp because it is prime and its reverse (396349) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-943693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (943699) 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, 471846 + 471847.

It is an arithmetic number, because the mean of its divisors is an integer number (471847).

2⁹⁴³⁶⁹³ is an apocalyptic number.

It is an amenable number.

943693 is a deficient number, since it is larger than the sum of its proper divisors (1).

943693 is an equidigital number, since it uses as much as digits as its factorization.

943693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 34.

The square root of 943693 is about 971.4386238976. The cubic root of 943693 is about 98.0867273354.

The spelling of 943693 in words is "nine hundred forty-three thousand, six hundred ninety-three".