693943 has 2 divisors, whose sum is σ = 693944. Its totient is φ = 693942.

The previous prime is 693881. The next prime is 693961. The reversal of 693943 is 349396.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 693943 - 2⁹ = 693431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 693899 and 693908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (693743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346971 + 346972.

It is an arithmetic number, because the mean of its divisors is an integer number (346972).

2⁶⁹³⁹⁴³ is an apocalyptic number.

693943 is a deficient number, since it is larger than the sum of its proper divisors (1).

693943 is an equidigital number, since it uses as much as digits as its factorization.

693943 is an evil number, because the sum of its binary digits is even.

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

The square root of 693943 is about 833.0324123346. The cubic root of 693943 is about 88.5335610634.

The spelling of 693943 in words is "six hundred ninety-three thousand, nine hundred forty-three".