1385735893 has 2 divisors, whose sum is σ = 1385735894. Its totient is φ = 1385735892.

The previous prime is 1385735887. The next prime is 1385736013. The reversal of 1385735893 is 3985375831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1022528529 + 363207364 = 31977^2 + 19058^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385735893 - 2²⁵ = 1352181461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1385735893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385735843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692867946 + 692867947.

It is an arithmetic number, because the mean of its divisors is an integer number (692867947).

Almost surely, 2^1385735893 is an apocalyptic number.

It is an amenable number.

1385735893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385735893 is an equidigital number, since it uses as much as digits as its factorization.

1385735893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 52.

The square root of 1385735893 is about 37225.4737108878. The cubic root of 1385735893 is about 1114.8766560389.

The spelling of 1385735893 in words is "one billion, three hundred eighty-five million, seven hundred thirty-five thousand, eight hundred ninety-three".