1386733 has 2 divisors, whose sum is σ = 1386734. Its totient is φ = 1386732.

The previous prime is 1386731. The next prime is 1386757. The reversal of 1386733 is 3376831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1075369 + 311364 = 1037^2 + 558^2 .

It is a cyclic number.

It is not a de Polignac number, because 1386733 - 2¹ = 1386731 is a prime.

Together with 1386731, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1386695 and 1386704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1386731) 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, 693366 + 693367.

It is an arithmetic number, because the mean of its divisors is an integer number (693367).

2^1386733 is an apocalyptic number.

It is an amenable number.

1386733 is a deficient number, since it is larger than the sum of its proper divisors (1).

1386733 is an equidigital number, since it uses as much as digits as its factorization.

1386733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 1386733 is about 1177.5962805648. The cubic root of 1386733 is about 111.5143995292.

The spelling of 1386733 in words is "one million, three hundred eighty-six thousand, seven hundred thirty-three".