391096 has 32 divisors (see below), whose sum is σ = 806400. Its totient is φ = 177120.

The previous prime is 391073. The next prime is 391103. The reversal of 391096 is 690193.

It is a happy number.

It is an Ulam number.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

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, 4671 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (25200).

2³⁹¹⁰⁹⁶ is an apocalyptic number.

It is an amenable number.

391096 is an abundant number, since it is smaller than the sum of its proper divisors (415304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

391096 is a wasteful number, since it uses less digits than its factorization.

391096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 391096 is about 625.3766864858. The cubic root of 391096 is about 73.1298121848.

The spelling of 391096 in words is "three hundred ninety-one thousand, ninety-six".