389488349 has 2 divisors, whose sum is σ = 389488350. Its totient is φ = 389488348.

The previous prime is 389488339. The next prime is 389488399. The reversal of 389488349 is 943884983.

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., 372760249 + 16728100 = 19307^2 + 4090^2 .

It is a cyclic number.

It is not a de Polignac number, because 389488349 - 2⁸ = 389488093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389488294 and 389488303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389488339) 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, 194744174 + 194744175.

It is an arithmetic number, because the mean of its divisors is an integer number (194744175).

Almost surely, 2^389488349 is an apocalyptic number.

It is an amenable number.

389488349 is a deficient number, since it is larger than the sum of its proper divisors (1).

389488349 is an equidigital number, since it uses as much as digits as its factorization.

389488349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5971968, while the sum is 56.

The square root of 389488349 is about 19735.4591788486. The cubic root of 389488349 is about 730.2947136795.

The spelling of 389488349 in words is "three hundred eighty-nine million, four hundred eighty-eight thousand, three hundred forty-nine".