389761 has 2 divisors, whose sum is σ = 389762. Its totient is φ = 389760.

The previous prime is 389749. The next prime is 389773. The reversal of 389761 is 167983.

It is a balanced prime because it is at equal distance from previous prime (389749) and next prime (389773).

It can be written as a sum of positive squares in only one way, i.e., 336400 + 53361 = 580^2 + 231^2 .

It is a cyclic number.

It is not a de Polignac number, because 389761 - 2¹³ = 381569 is a prime.

It is a super-3 number, since 3×389761³ = 177630033353754243, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (389791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194880 + 194881.

It is an arithmetic number, because the mean of its divisors is an integer number (194881).

2³⁸⁹⁷⁶¹ is an apocalyptic number.

It is an amenable number.

389761 is a deficient number, since it is larger than the sum of its proper divisors (1).

389761 is an equidigital number, since it uses as much as digits as its factorization.

389761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 389761 is about 624.3084173708. The cubic root of 389761 is about 73.0465081754.

Subtracting from 389761 its product of digits (9072), we obtain a square (380689 = 617²).

The spelling of 389761 in words is "three hundred eighty-nine thousand, seven hundred sixty-one".