1394303689 has 4 divisors (see below), whose sum is σ = 1400446224. Its totient is φ = 1388161156.

The previous prime is 1394303683. The next prime is 1394303711. The reversal of 1394303689 is 9863034931.

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: 9863034931 = 109 ⋅90486559.

It is a cyclic number.

It is not a de Polignac number, because 1394303689 - 2²⁷ = 1260085961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1394303683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3070927 + ... + 3071380.

It is an arithmetic number, because the mean of its divisors is an integer number (350111556).

Almost surely, 2^1394303689 is an apocalyptic number.

It is an amenable number.

1394303689 is a deficient number, since it is larger than the sum of its proper divisors (6142535).

1394303689 is an equidigital number, since it uses as much as digits as its factorization.

1394303689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6142534.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 1394303689 is about 37340.3761229048. The cubic root of 1394303689 is about 1117.1696415157.

The spelling of 1394303689 in words is "one billion, three hundred ninety-four million, three hundred three thousand, six hundred eighty-nine".