391234 has 8 divisors (see below), whose sum is σ = 590400. Its totient is φ = 194436.

The previous prime is 391231. The next prime is 391247. The reversal of 391234 is 432193.

391234 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (391231) 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, 94 + ... + 889.

It is an arithmetic number, because the mean of its divisors is an integer number (73800).

2³⁹¹²³⁴ is an apocalyptic number.

391234 is a deficient number, since it is larger than the sum of its proper divisors (199166).

391234 is a wasteful number, since it uses less digits than its factorization.

391234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

The product of its digits is 648, while the sum is 22.

The square root of 391234 is about 625.4870102568. The cubic root of 391234 is about 73.1384125688.

It can be divided in two parts, 391 and 234, that added together give a 4-th power (625 = 5⁴).

The spelling of 391234 in words is "three hundred ninety-one thousand, two hundred thirty-four".