389968463 has 2 divisors, whose sum is σ = 389968464. Its totient is φ = 389968462.

The previous prime is 389968441. The next prime is 389968471. The reversal of 389968463 is 364869983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389968463 - 2⁶ = 389968399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389968399 and 389968408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389968963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194984231 + 194984232.

It is an arithmetic number, because the mean of its divisors is an integer number (194984232).

Almost surely, 2^389968463 is an apocalyptic number.

389968463 is a deficient number, since it is larger than the sum of its proper divisors (1).

389968463 is an equidigital number, since it uses as much as digits as its factorization.

389968463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6718464, while the sum is 56.

The square root of 389968463 is about 19747.6191729535. The cubic root of 389968463 is about 730.5946633840.

The spelling of 389968463 in words is "three hundred eighty-nine million, nine hundred sixty-eight thousand, four hundred sixty-three".