1393773401 has 2 divisors, whose sum is σ = 1393773402. Its totient is φ = 1393773400.

The previous prime is 1393773397. The next prime is 1393773427. The reversal of 1393773401 is 1043773931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1122183001 + 271590400 = 33499^2 + 16480^2 .

It is an emirp because it is prime and its reverse (1043773931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1393773401 - 2² = 1393773397 is a prime.

It is not a weakly prime, because it can be changed into another prime (1393773001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696886700 + 696886701.

It is an arithmetic number, because the mean of its divisors is an integer number (696886701).

Almost surely, 2^1393773401 is an apocalyptic number.

It is an amenable number.

1393773401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393773401 is an equidigital number, since it uses as much as digits as its factorization.

1393773401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 1393773401 is about 37333.2747157278. The cubic root of 1393773401 is about 1117.0279945226.

The spelling of 1393773401 in words is "one billion, three hundred ninety-three million, seven hundred seventy-three thousand, four hundred one".