1393361297 has 4 divisors (see below), whose sum is σ = 1412986176. Its totient is φ = 1373736420.

The previous prime is 1393361243. The next prime is 1393361317. The reversal of 1393361297 is 7921633931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7921633931 = 1543 ⋅5133917.

It is a cyclic number.

It is not a de Polignac number, because 1393361297 - 2⁸ = 1393361041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393361227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9812333 + ... + 9812474.

It is an arithmetic number, because the mean of its divisors is an integer number (353246544).

Almost surely, 2^1393361297 is an apocalyptic number.

It is an amenable number.

1393361297 is a deficient number, since it is larger than the sum of its proper divisors (19624879).

1393361297 is an equidigital number, since it uses as much as digits as its factorization.

1393361297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19624878.

The product of its digits is 183708, while the sum is 44.

The square root of 1393361297 is about 37327.7550490248. The cubic root of 1393361297 is about 1116.9178912396.

The spelling of 1393361297 in words is "one billion, three hundred ninety-three million, three hundred sixty-one thousand, two hundred ninety-seven".