389464013 has 2 divisors, whose sum is σ = 389464014. Its totient is φ = 389464012.

The previous prime is 389464007. The next prime is 389464051. The reversal of 389464013 is 310464983.

It is an a-pointer prime, because the next prime (389464051) can be obtained adding 389464013 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324468169 + 64995844 = 18013^2 + 8062^2 .

It is an emirp because it is prime and its reverse (310464983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389464013 - 2²⁰ = 388415437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389464003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194732006 + 194732007.

It is an arithmetic number, because the mean of its divisors is an integer number (194732007).

Almost surely, 2^389464013 is an apocalyptic number.

It is an amenable number.

389464013 is a deficient number, since it is larger than the sum of its proper divisors (1).

389464013 is an equidigital number, since it uses as much as digits as its factorization.

389464013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 389464013 is about 19734.8426140165. The cubic root of 389464013 is about 730.2795032782.

The spelling of 389464013 in words is "three hundred eighty-nine million, four hundred sixty-four thousand, thirteen".