389601263 has 2 divisors, whose sum is σ = 389601264. Its totient is φ = 389601262.

The previous prime is 389601259. The next prime is 389601269. The reversal of 389601263 is 362106983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389601263 - 2² = 389601259 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389601269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194800631 + 194800632.

It is an arithmetic number, because the mean of its divisors is an integer number (194800632).

Almost surely, 2^389601263 is an apocalyptic number.

389601263 is a deficient number, since it is larger than the sum of its proper divisors (1).

389601263 is an equidigital number, since it uses as much as digits as its factorization.

389601263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 389601263 is about 19738.3196599913. The cubic root of 389601263 is about 730.3652785032.

The spelling of 389601263 in words is "three hundred eighty-nine million, six hundred one thousand, two hundred sixty-three".