389250361 has 2 divisors, whose sum is σ = 389250362. Its totient is φ = 389250360.

The previous prime is 389250349. The next prime is 389250409. The reversal of 389250361 is 163052983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296012025 + 93238336 = 17205^2 + 9656^2 .

It is a cyclic number.

It is not a de Polignac number, because 389250361 - 2¹⁵ = 389217593 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 389250361.

It is not a weakly prime, because it can be changed into another prime (389250461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194625180 + 194625181.

It is an arithmetic number, because the mean of its divisors is an integer number (194625181).

Almost surely, 2^389250361 is an apocalyptic number.

It is an amenable number.

389250361 is a deficient number, since it is larger than the sum of its proper divisors (1).

389250361 is an equidigital number, since it uses as much as digits as its factorization.

389250361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 389250361 is about 19729.4288057207. The cubic root of 389250361 is about 730.1459400470.

The spelling of 389250361 in words is "three hundred eighty-nine million, two hundred fifty thousand, three hundred sixty-one".