385413673 has 2 divisors, whose sum is σ = 385413674. Its totient is φ = 385413672.

The previous prime is 385413667. The next prime is 385413703. The reversal of 385413673 is 376314583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264127504 + 121286169 = 16252^2 + 11013^2 .

It is an emirp because it is prime and its reverse (376314583) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385413673 is a prime.

It is not a weakly prime, because it can be changed into another prime (385411673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192706836 + 192706837.

It is an arithmetic number, because the mean of its divisors is an integer number (192706837).

Almost surely, 2^385413673 is an apocalyptic number.

It is an amenable number.

385413673 is a deficient number, since it is larger than the sum of its proper divisors (1).

385413673 is an equidigital number, since it uses as much as digits as its factorization.

385413673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 385413673 is about 19631.9554043911. The cubic root of 385413673 is about 727.7390942298.

The spelling of 385413673 in words is "three hundred eighty-five million, four hundred thirteen thousand, six hundred seventy-three".