1397933 has 2 divisors, whose sum is σ = 1397934. Its totient is φ = 1397932.

The previous prime is 1397909. The next prime is 1397939. The reversal of 1397933 is 3397931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1283689 + 114244 = 1133^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 1397933 - 2¹⁰ = 1396909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1397893 and 1397902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1397939) 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, 698966 + 698967.

It is an arithmetic number, because the mean of its divisors is an integer number (698967).

2^1397933 is an apocalyptic number.

It is an amenable number.

1397933 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397933 is an equidigital number, since it uses as much as digits as its factorization.

1397933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15309, while the sum is 35.

The square root of 1397933 is about 1182.3421670566. The cubic root of 1397933 is about 111.8138116135.

The spelling of 1397933 in words is "one million, three hundred ninety-seven thousand, nine hundred thirty-three".