391060 has 12 divisors (see below), whose sum is σ = 821268. Its totient is φ = 156416.

The previous prime is 391057. The next prime is 391063. The reversal of 391060 is 60193.

It is an interprime number because it is at equal distance from previous prime (391057) and next prime (391063).

It can be written as a sum of positive squares in 2 ways, for example, as 242064 + 148996 = 492^2 + 386^2 .

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391063) 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, 9757 + ... + 9796.

It is an arithmetic number, because the mean of its divisors is an integer number (68439).

2³⁹¹⁰⁶⁰ is an apocalyptic number.

It is an amenable number.

391060 is an abundant number, since it is smaller than the sum of its proper divisors (430208).

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

391060 is a wasteful number, since it uses less digits than its factorization.

391060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19562 (or 19560 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 391060 is about 625.3479031707. The cubic root of 391060 is about 73.1275682737.

The spelling of 391060 in words is "three hundred ninety-one thousand, sixty".