1394993 has 2 divisors, whose sum is σ = 1394994. Its totient is φ = 1394992.

The previous prime is 1394989. The next prime is 1395001. The reversal of 1394993 is 3994931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1281424 + 113569 = 1132^2 + 337^2 .

It is an emirp because it is prime and its reverse (3994931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1394993 - 2² = 1394989 is a prime.

It is not a weakly prime, because it can be changed into another prime (1394933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697496 + 697497.

It is an arithmetic number, because the mean of its divisors is an integer number (697497).

2^1394993 is an apocalyptic number.

It is an amenable number.

1394993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394993 is an equidigital number, since it uses as much as digits as its factorization.

1394993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244, while the sum is 38.

The square root of 1394993 is about 1181.0982177618. The cubic root of 1394993 is about 111.7353711997.

The spelling of 1394993 in words is "one million, three hundred ninety-four thousand, nine hundred ninety-three".