1396587 has 4 divisors (see below), whose sum is σ = 1862120. Its totient is φ = 931056.

The previous prime is 1396579. The next prime is 1396607. The reversal of 1396587 is 7856931.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1396587 - 2³ = 1396579 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232762 + ... + 232767.

It is an arithmetic number, because the mean of its divisors is an integer number (465530).

2^1396587 is an apocalyptic number.

1396587 is a deficient number, since it is larger than the sum of its proper divisors (465533).

1396587 is an equidigital number, since it uses as much as digits as its factorization.

1396587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465532.

The product of its digits is 45360, while the sum is 39.

The square root of 1396587 is about 1181.7728208078. The cubic root of 1396587 is about 111.7779134411. Note that the first 3 decimals are identical.

The spelling of 1396587 in words is "one million, three hundred ninety-six thousand, five hundred eighty-seven".