391485 has 8 divisors (see below), whose sum is σ = 626400. Its totient is φ = 208784.

The previous prime is 391453. The next prime is 391487. The reversal of 391485 is 584193.

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

It is a cyclic number.

It is not a de Polignac number, because 391485 - 2⁵ = 391453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391487) 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 7 ways as a sum of consecutive naturals, for example, 13035 + ... + 13064.

It is an arithmetic number, because the mean of its divisors is an integer number (78300).

2³⁹¹⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

391485 is a deficient number, since it is larger than the sum of its proper divisors (234915).

391485 is a wasteful number, since it uses less digits than its factorization.

391485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26107.

The product of its digits is 4320, while the sum is 30.

The square root of 391485 is about 625.6876217411. The cubic root of 391485 is about 73.1540501132.

The spelling of 391485 in words is "three hundred ninety-one thousand, four hundred eighty-five".