1393609 has 16 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 1119552.

The previous prime is 1393607. The next prime is 1393619. The reversal of 1393609 is 9063931.

It is not a de Polignac number, because 1393609 - 2¹ = 1393607 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 (1393607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5712 + ... + 5950.

It is an arithmetic number, because the mean of its divisors is an integer number (108000).

2^1393609 is an apocalyptic number.

It is an amenable number.

1393609 is a deficient number, since it is larger than the sum of its proper divisors (334391).

1393609 is an equidigital number, since it uses as much as digits as its factorization.

1393609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 1393609 is about 1180.5121769808. The cubic root of 1393609 is about 111.6984073528.

It can be divided in two parts, 1393 and 609, that added together give a palindrome (2002).

The spelling of 1393609 in words is "one million, three hundred ninety-three thousand, six hundred nine".