389235465847 has 4 divisors (see below), whose sum is σ = 391385938216. Its totient is φ = 387084993480.

The previous prime is 389235465821. The next prime is 389235465851. The reversal of 389235465847 is 748564532983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 748564532983 = 73 ⋅10254308671.

It is a cyclic number.

It is not a de Polignac number, because 389235465847 - 2²⁷ = 389101248119 is a prime.

It is a super-2 number, since 2×389235465847² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389235465347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075235913 + ... + 1075236274.

It is an arithmetic number, because the mean of its divisors is an integer number (97846484554).

Almost surely, 2^389235465847 is an apocalyptic number.

389235465847 is a deficient number, since it is larger than the sum of its proper divisors (2150472369).

389235465847 is a wasteful number, since it uses less digits than its factorization.

389235465847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150472368.

The product of its digits is 174182400, while the sum is 64.

The spelling of 389235465847 in words is "three hundred eighty-nine billion, two hundred thirty-five million, four hundred sixty-five thousand, eight hundred forty-seven".