389334273 has 4 divisors (see below), whose sum is σ = 519112368. Its totient is φ = 259556180.

The previous prime is 389334241. The next prime is 389334277. The reversal of 389334273 is 372433983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 372433983 = 3 ⋅124144661.

It is a cyclic number.

It is not a de Polignac number, because 389334273 - 2⁵ = 389334241 is a prime.

It is a super-2 number, since 2×389334273² = 303162352264877058, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (389334277) 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, 64889043 + ... + 64889048.

It is an arithmetic number, because the mean of its divisors is an integer number (129778092).

Almost surely, 2^389334273 is an apocalyptic number.

It is an amenable number.

389334273 is a deficient number, since it is larger than the sum of its proper divisors (129778095).

389334273 is a wasteful number, since it uses less digits than its factorization.

389334273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129778094.

The product of its digits is 326592, while the sum is 42.

The square root of 389334273 is about 19731.5552605465. Note that the first 3 decimals coincide. The cubic root of 389334273 is about 730.1984029434.

The spelling of 389334273 in words is "three hundred eighty-nine million, three hundred thirty-four thousand, two hundred seventy-three".