1330397 has 2 divisors, whose sum is σ = 1330398. Its totient is φ = 1330396.

The previous prime is 1330393. The next prime is 1330411. The reversal of 1330397 is 7930331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1240996 + 89401 = 1114^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330397 - 2² = 1330393 is a prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330393) 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, 665198 + 665199.

It is an arithmetic number, because the mean of its divisors is an integer number (665199).

2^1330397 is an apocalyptic number.

It is an amenable number.

1330397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330397 is an equidigital number, since it uses as much as digits as its factorization.

1330397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 1330397 is about 1153.4283679536. The cubic root of 1330397 is about 109.9833859205.

The spelling of 1330397 in words is "one million, three hundred thirty thousand, three hundred ninety-seven".