386273889 has 12 divisors (see below), whose sum is σ = 562890276. Its totient is φ = 255236352.

The previous prime is 386273887. The next prime is 386273893. The reversal of 386273889 is 988372683.

386273889 is a `hidden beast` number, since 3 + 8 + 627 + 3 + 8 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 206928225 + 179345664 = 14385^2 + 13392^2 .

It is not a de Polignac number, because 386273889 - 2¹ = 386273887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (386273887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188892 + ... + 190925.

It is an arithmetic number, because the mean of its divisors is an integer number (46907523).

Almost surely, 2^386273889 is an apocalyptic number.

It is an amenable number.

386273889 is a deficient number, since it is larger than the sum of its proper divisors (176616387).

386273889 is a wasteful number, since it uses less digits than its factorization.

386273889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379936 (or 379933 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 386273889 is about 19653.8517598968. The cubic root of 386273889 is about 728.2801126164.

The spelling of 386273889 in words is "three hundred eighty-six million, two hundred seventy-three thousand, eight hundred eighty-nine".