384156623 has 4 divisors (see below), whose sum is σ = 384197880. Its totient is φ = 384115368.

The previous prime is 384156601. The next prime is 384156637. The reversal of 384156623 is 326651483.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 384156623 - 2¹⁸ = 383894479 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 (384156673) 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, 668 + ... + 27726.

It is an arithmetic number, because the mean of its divisors is an integer number (96049470).

Almost surely, 2^384156623 is an apocalyptic number.

384156623 is a deficient number, since it is larger than the sum of its proper divisors (41257).

384156623 is a wasteful number, since it uses less digits than its factorization.

384156623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41256.

The product of its digits is 103680, while the sum is 38.

The square root of 384156623 is about 19599.9138518515. The cubic root of 384156623 is about 726.9470441445.

The spelling of 384156623 in words is "three hundred eighty-four million, one hundred fifty-six thousand, six hundred twenty-three".