391058 has 16 divisors (see below), whose sum is σ = 635040. Its totient is φ = 180000.

The previous prime is 391057. The next prime is 391063. The reversal of 391058 is 850193.

391058 is nontrivially palindromic in base 14.

It is not an unprimeable number, because it can be changed into a prime (391057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1433 + ... + 1683.

It is an arithmetic number, because the mean of its divisors is an integer number (39690).

2³⁹¹⁰⁵⁸ is an apocalyptic number.

391058 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

391058 is a deficient number, since it is larger than the sum of its proper divisors (243982).

391058 is a wasteful number, since it uses less digits than its factorization.

391058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 391058 is about 625.3463040588. The cubic root of 391058 is about 73.1274436079.

The spelling of 391058 in words is "three hundred ninety-one thousand, fifty-eight".