385212739 has 2 divisors, whose sum is σ = 385212740. Its totient is φ = 385212738.

The previous prime is 385212719. The next prime is 385212781. The reversal of 385212739 is 937212583.

It is a weak prime.

It is an emirp because it is prime and its reverse (937212583) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385212739 is a prime.

It is not a weakly prime, because it can be changed into another prime (385212719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192606369 + 192606370.

It is an arithmetic number, because the mean of its divisors is an integer number (192606370).

Almost surely, 2^385212739 is an apocalyptic number.

385212739 is a deficient number, since it is larger than the sum of its proper divisors (1).

385212739 is an equidigital number, since it uses as much as digits as its factorization.

385212739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 385212739 is about 19626.8372133668. The cubic root of 385212739 is about 727.6126042127.

The spelling of 385212739 in words is "three hundred eighty-five million, two hundred twelve thousand, seven hundred thirty-nine".