1385693 has 2 divisors, whose sum is σ = 1385694. Its totient is φ = 1385692.

The previous prime is 1385647. The next prime is 1385743. The reversal of 1385693 is 3965831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1352569 + 33124 = 1163^2 + 182^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385693 - 2⁸ = 1385437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385603) 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, 692846 + 692847.

It is an arithmetic number, because the mean of its divisors is an integer number (692847).

2^1385693 is an apocalyptic number.

It is an amenable number.

1385693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385693 is an equidigital number, since it uses as much as digits as its factorization.

1385693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 1385693 is about 1177.1546202602. The cubic root of 1385693 is about 111.4865152910.

It can be divided in two parts, 1385 and 693, that multiplied together give a triangular number (959805 = T₁₃₈₅).

The spelling of 1385693 in words is "one million, three hundred eighty-five thousand, six hundred ninety-three".