384975923 has 4 divisors (see below), whose sum is σ = 386290128. Its totient is φ = 383661720.

The previous prime is 384975889. The next prime is 384975961. The reversal of 384975923 is 329579483.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 384975923 - 2¹⁶ = 384910387 is a prime.

It is a super-2 number, since 2×384975923² = 296412922579403858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384975973) 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, 656663 + ... + 657248.

It is an arithmetic number, because the mean of its divisors is an integer number (96572532).

Almost surely, 2^384975923 is an apocalyptic number.

384975923 is a deficient number, since it is larger than the sum of its proper divisors (1314205).

384975923 is a wasteful number, since it uses less digits than its factorization.

384975923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314204.

The product of its digits is 1632960, while the sum is 50.

The square root of 384975923 is about 19620.8033219846. The cubic root of 384975923 is about 727.4634696253.

The spelling of 384975923 in words is "three hundred eighty-four million, nine hundred seventy-five thousand, nine hundred twenty-three".