1397633 has 2 divisors, whose sum is σ = 1397634. Its totient is φ = 1397632.

The previous prime is 1397609. The next prime is 1397657. The reversal of 1397633 is 3367931.

It is a balanced prime because it is at equal distance from previous prime (1397609) and next prime (1397657).

It can be written as a sum of positive squares in only one way, i.e., 744769 + 652864 = 863^2 + 808^2 .

It is a cyclic number.

It is not a de Polignac number, because 1397633 - 2⁶ = 1397569 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1397633.

It is not a weakly prime, because it can be changed into another prime (1397603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698816 + 698817.

It is an arithmetic number, because the mean of its divisors is an integer number (698817).

2^1397633 is an apocalyptic number.

It is an amenable number.

1397633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397633 is an equidigital number, since it uses as much as digits as its factorization.

1397633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 32.

The square root of 1397633 is about 1182.2152934216. The cubic root of 1397633 is about 111.8058125312.

The spelling of 1397633 in words is "one million, three hundred ninety-seven thousand, six hundred thirty-three".