1394412817 has 4 divisors (see below), whose sum is σ = 1593614656. Its totient is φ = 1195210980.

The previous prime is 1394412791. The next prime is 1394412823. The reversal of 1394412817 is 7182144931.

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.

It is a cyclic number.

It is not a de Polignac number, because 1394412817 - 2¹¹ = 1394410769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1394412817.

It is not an unprimeable number, because it can be changed into a prime (1394412827) 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, 99600909 + ... + 99600922.

It is an arithmetic number, because the mean of its divisors is an integer number (398403664).

Almost surely, 2^1394412817 is an apocalyptic number.

It is an amenable number.

1394412817 is a deficient number, since it is larger than the sum of its proper divisors (199201839).

1394412817 is an equidigital number, since it uses as much as digits as its factorization.

1394412817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199201838.

The product of its digits is 48384, while the sum is 40.

The square root of 1394412817 is about 37341.8373543670. The cubic root of 1394412817 is about 1117.1987866030.

The spelling of 1394412817 in words is "one billion, three hundred ninety-four million, four hundred twelve thousand, eight hundred seventeen".