389687914423 has 4 divisors (see below), whose sum is σ = 406630867248. Its totient is φ = 372744961600.

The previous prime is 389687914417. The next prime is 389687914453. The reversal of 389687914423 is 324419786983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324419786983 = 73 ⋅4444106671.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389687914423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389687914453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8471476378 + ... + 8471476423.

It is an arithmetic number, because the mean of its divisors is an integer number (101657716812).

Almost surely, 2^389687914423 is an apocalyptic number.

389687914423 is a deficient number, since it is larger than the sum of its proper divisors (16942952825).

389687914423 is a wasteful number, since it uses less digits than its factorization.

389687914423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16942952824.

The product of its digits is 62705664, while the sum is 64.

The spelling of 389687914423 in words is "three hundred eighty-nine billion, six hundred eighty-seven million, nine hundred fourteen thousand, four hundred twenty-three".