1393950773 has 2 divisors, whose sum is σ = 1393950774. Its totient is φ = 1393950772.

The previous prime is 1393950763. The next prime is 1393950847. The reversal of 1393950773 is 3770593931.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1389276529 + 4674244 = 37273^2 + 2162^2 .

It is a cyclic number.

It is not a de Polignac number, because 1393950773 - 2¹⁶ = 1393885237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1393950763) 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 as a sum of consecutive naturals, namely, 696975386 + 696975387.

It is an arithmetic number, because the mean of its divisors is an integer number (696975387).

Almost surely, 2^1393950773 is an apocalyptic number.

It is an amenable number.

1393950773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393950773 is an equidigital number, since it uses as much as digits as its factorization.

1393950773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 535815, while the sum is 47.

The square root of 1393950773 is about 37335.6501617422. The cubic root of 1393950773 is about 1117.0753769463.

The spelling of 1393950773 in words is "one billion, three hundred ninety-three million, nine hundred fifty thousand, seven hundred seventy-three".