1396387 has 2 divisors, whose sum is σ = 1396388. Its totient is φ = 1396386.

The previous prime is 1396331. The next prime is 1396393. The reversal of 1396387 is 7836931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1396387 - 2⁷ = 1396259 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1396327) 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, 698193 + 698194.

It is an arithmetic number, because the mean of its divisors is an integer number (698194).

2^1396387 is an apocalyptic number.

1396387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396387 is an equidigital number, since it uses as much as digits as its factorization.

1396387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 1396387 is about 1181.6881991456. The cubic root of 1396387 is about 111.7725774207.

The spelling of 1396387 in words is "one million, three hundred ninety-six thousand, three hundred eighty-seven".