389229023 has 4 divisors (see below), whose sum is σ = 406152048. Its totient is φ = 372306000.

The previous prime is 389229019. The next prime is 389229047. The reversal of 389229023 is 320922983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320922983 = 6961 ⋅46103.

It is a cyclic number.

It is not a de Polignac number, because 389229023 - 2² = 389229019 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 (389229013) 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, 8461478 + ... + 8461523.

It is an arithmetic number, because the mean of its divisors is an integer number (101538012).

Almost surely, 2^389229023 is an apocalyptic number.

389229023 is a deficient number, since it is larger than the sum of its proper divisors (16923025).

389229023 is a wasteful number, since it uses less digits than its factorization.

389229023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16923024.

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

The square root of 389229023 is about 19728.8880325273. Note that the first 3 decimals coincide. The cubic root of 389229023 is about 730.1325980438.

The spelling of 389229023 in words is "three hundred eighty-nine million, two hundred twenty-nine thousand, twenty-three".