1396693 has 4 divisors (see below), whose sum is σ = 1399468. Its totient is φ = 1393920.

The previous prime is 1396691. The next prime is 1396697. The reversal of 1396693 is 3966931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3966931 = 163 ⋅24337.

It can be written as a sum of positive squares in 2 ways, for example, as 400689 + 996004 = 633^2 + 998^2 .

It is a cyclic number.

It is not a de Polignac number, because 1396693 - 2¹ = 1396691 is a prime.

It is an Ulam 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 (1396691) 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, 396 + ... + 1717.

It is an arithmetic number, because the mean of its divisors is an integer number (349867).

2^1396693 is an apocalyptic number.

It is an amenable number.

1396693 is a deficient number, since it is larger than the sum of its proper divisors (2775).

1396693 is an equidigital number, since it uses as much as digits as its factorization.

1396693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774.

The product of its digits is 26244, while the sum is 37.

The square root of 1396693 is about 1181.8176678321. The cubic root of 1396693 is about 111.7807413253.

The spelling of 1396693 in words is "one million, three hundred ninety-six thousand, six hundred ninety-three".