385752761 has 2 divisors, whose sum is σ = 385752762. Its totient is φ = 385752760.

The previous prime is 385752737. The next prime is 385752833. The reversal of 385752761 is 167257583.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359292025 + 26460736 = 18955^2 + 5144^2 .

It is an emirp because it is prime and its reverse (167257583) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385752761 is a prime.

It is not a weakly prime, because it can be changed into another prime (385752061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192876380 + 192876381.

It is an arithmetic number, because the mean of its divisors is an integer number (192876381).

Almost surely, 2^385752761 is an apocalyptic number.

It is an amenable number.

385752761 is a deficient number, since it is larger than the sum of its proper divisors (1).

385752761 is an equidigital number, since it uses as much as digits as its factorization.

385752761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 44.

The square root of 385752761 is about 19640.5896296420. The cubic root of 385752761 is about 727.9524539501.

The spelling of 385752761 in words is "three hundred eighty-five million, seven hundred fifty-two thousand, seven hundred sixty-one".