1396345 has 4 divisors (see below), whose sum is σ = 1675620. Its totient is φ = 1117072.

The previous prime is 1396331. The next prime is 1396387. The reversal of 1396345 is 5436931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5436931 = 101 ⋅53831.

It can be written as a sum of positive squares in 2 ways, for example, as 166464 + 1229881 = 408^2 + 1109^2 .

It is a cyclic number.

It is not a de Polignac number, because 1396345 - 2⁷ = 1396217 is a prime.

1396345 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139630 + ... + 139639.

It is an arithmetic number, because the mean of its divisors is an integer number (418905).

2^1396345 is an apocalyptic number.

It is an amenable number.

1396345 is a deficient number, since it is larger than the sum of its proper divisors (279275).

1396345 is an equidigital number, since it uses as much as digits as its factorization.

1396345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279274.

The product of its digits is 9720, while the sum is 31.

The square root of 1396345 is about 1181.6704278266. The cubic root of 1396345 is about 111.7714567917.

The spelling of 1396345 in words is "one million, three hundred ninety-six thousand, three hundred forty-five".