389230747 has 2 divisors, whose sum is σ = 389230748. Its totient is φ = 389230746.

The previous prime is 389230739. The next prime is 389230783. The reversal of 389230747 is 747032983.

It is a weak prime.

It is an emirp because it is prime and its reverse (747032983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389230747 - 2³ = 389230739 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (389230727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194615373 + 194615374.

It is an arithmetic number, because the mean of its divisors is an integer number (194615374).

Almost surely, 2^389230747 is an apocalyptic number.

389230747 is a deficient number, since it is larger than the sum of its proper divisors (1).

389230747 is an equidigital number, since it uses as much as digits as its factorization.

389230747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 389230747 is about 19728.9317247539. The cubic root of 389230747 is about 730.1336760267.

The spelling of 389230747 in words is "three hundred eighty-nine million, two hundred thirty thousand, seven hundred forty-seven".