386143923 has 16 divisors (see below), whose sum is σ = 562447872. Its totient is φ = 233700000.

The previous prime is 386143921. The next prime is 386143931. The reversal of 386143923 is 329341683.

It is not a de Polignac number, because 386143923 - 2¹ = 386143921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (386143921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16993 + ... + 32573.

It is an arithmetic number, because the mean of its divisors is an integer number (35152992).

Almost surely, 2^386143923 is an apocalyptic number.

386143923 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

386143923 is a deficient number, since it is larger than the sum of its proper divisors (176303949).

386143923 is a wasteful number, since it uses less digits than its factorization.

386143923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16346.

The product of its digits is 93312, while the sum is 39.

The square root of 386143923 is about 19650.5451069430. The cubic root of 386143923 is about 728.1984242313.

The spelling of 386143923 in words is "three hundred eighty-six million, one hundred forty-three thousand, nine hundred twenty-three".