389537429 has 2 divisors, whose sum is σ = 389537430. Its totient is φ = 389537428.

The previous prime is 389537389. The next prime is 389537471. The reversal of 389537429 is 924735983.

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., 338486404 + 51051025 = 18398^2 + 7145^2 .

It is a cyclic number.

It is not a de Polignac number, because 389537429 - 2⁸ = 389537173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389567429) 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, 194768714 + 194768715.

It is an arithmetic number, because the mean of its divisors is an integer number (194768715).

Almost surely, 2^389537429 is an apocalyptic number.

It is an amenable number.

389537429 is a deficient number, since it is larger than the sum of its proper divisors (1).

389537429 is an equidigital number, since it uses as much as digits as its factorization.

389537429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 389537429 is about 19736.7025868051. The cubic root of 389537429 is about 730.3253875616.

The spelling of 389537429 in words is "three hundred eighty-nine million, five hundred thirty-seven thousand, four hundred twenty-nine".