1396385 has 8 divisors (see below), whose sum is σ = 1682856. Its totient is φ = 1112320.

The previous prime is 1396331. The next prime is 1396387. The reversal of 1396385 is 5836931.

It can be written as a sum of positive squares in 4 ways, for example, as 22801 + 1373584 = 151^2 + 1172^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1396385 - 2¹⁸ = 1134241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1396387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145 + ... + 2025.

It is an arithmetic number, because the mean of its divisors is an integer number (210357).

2^1396385 is an apocalyptic number.

It is an amenable number.

1396385 is a deficient number, since it is larger than the sum of its proper divisors (286471).

1396385 is an equidigital number, since it uses as much as digits as its factorization.

1396385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203.

The product of its digits is 19440, while the sum is 35.

The square root of 1396385 is about 1181.6873528984. The cubic root of 1396385 is about 111.7725240579.

The spelling of 1396385 in words is "one million, three hundred ninety-six thousand, three hundred eighty-five".