391882 has 8 divisors (see below), whose sum is σ = 599076. Its totient is φ = 192192.

The previous prime is 391879. The next prime is 391889. The reversal of 391882 is 288193.

391882 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 385641 + 6241 = 621^2 + 79^2 .

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 (391889) 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, 1743 + ... + 1954.

2³⁹¹⁸⁸² is an apocalyptic number.

391882 is a deficient number, since it is larger than the sum of its proper divisors (207194).

391882 is a wasteful number, since it uses less digits than its factorization.

391882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752.

The product of its digits is 3456, while the sum is 31.

The square root of 391882 is about 626.0047923139. The cubic root of 391882 is about 73.1787699588.

The spelling of 391882 in words is "three hundred ninety-one thousand, eight hundred eighty-two".