1398583 has 6 divisors (see below), whose sum is σ = 1449344. Its totient is φ = 1349544.

The previous prime is 1398581. The next prime is 1398599. The reversal of 1398583 is 3858931.

It is not a de Polignac number, because 1398583 - 2¹ = 1398581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398581) 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 5 ways as a sum of consecutive naturals, for example, 10 + ... + 1672.

2^1398583 is an apocalyptic number.

1398583 is a deficient number, since it is larger than the sum of its proper divisors (50761).

1398583 is an equidigital number, since it uses as much as digits as its factorization.

1398583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721 (or 1692 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 1398583 is about 1182.6170132380. The cubic root of 1398583 is about 111.8311390333.

It can be divided in two parts, 13 and 98583, that added together give a square (98596 = 314²).

The spelling of 1398583 in words is "one million, three hundred ninety-eight thousand, five hundred eighty-three".