385393577 has 2 divisors, whose sum is σ = 385393578. Its totient is φ = 385393576.

The previous prime is 385393573. The next prime is 385393579. The reversal of 385393577 is 775393583.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370793536 + 14600041 = 19256^2 + 3821^2 .

It is a cyclic number.

It is not a de Polignac number, because 385393577 - 2² = 385393573 is a prime.

Together with 385393579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (385393573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192696788 + 192696789.

It is an arithmetic number, because the mean of its divisors is an integer number (192696789).

Almost surely, 2^385393577 is an apocalyptic number.

It is an amenable number.

385393577 is a deficient number, since it is larger than the sum of its proper divisors (1).

385393577 is an equidigital number, since it uses as much as digits as its factorization.

385393577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 50.

The square root of 385393577 is about 19631.4435791156. The cubic root of 385393577 is about 727.7264455703.

The spelling of 385393577 in words is "three hundred eighty-five million, three hundred ninety-three thousand, five hundred seventy-seven".