1385937673 has 2 divisors, whose sum is σ = 1385937674. Its totient is φ = 1385937672.

The previous prime is 1385937643. The next prime is 1385937743. The reversal of 1385937673 is 3767395831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1385923984 + 13689 = 37228^2 + 117^2 .

It is an emirp because it is prime and its reverse (3767395831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1385937673 - 2²⁹ = 849066761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1385937673.

It is not a weakly prime, because it can be changed into another prime (1385937643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692968836 + 692968837.

It is an arithmetic number, because the mean of its divisors is an integer number (692968837).

Almost surely, 2^1385937673 is an apocalyptic number.

It is an amenable number.

1385937673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385937673 is an equidigital number, since it uses as much as digits as its factorization.

1385937673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 52.

The square root of 1385937673 is about 37228.1838530971. The cubic root of 1385937673 is about 1114.9307666129.

The spelling of 1385937673 in words is "one billion, three hundred eighty-five million, nine hundred thirty-seven thousand, six hundred seventy-three".