390867 has 8 divisors (see below), whose sum is σ = 526224. Its totient is φ = 258048.

The previous prime is 390851. The next prime is 390869. The reversal of 390867 is 768093.

It is a happy number.

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

It is not a de Polignac number, because 390867 - 2⁴ = 390851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (390869) 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, 238 + ... + 915.

It is an arithmetic number, because the mean of its divisors is an integer number (65778).

2³⁹⁰⁸⁶⁷ is an apocalyptic number.

390867 is a deficient number, since it is larger than the sum of its proper divisors (135357).

390867 is a wasteful number, since it uses less digits than its factorization.

390867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 390867 is about 625.1935700245. The cubic root of 390867 is about 73.1155360679.

It can be divided in two parts, 39086 and 7, that added together give a palindrome (39093).

The spelling of 390867 in words is "three hundred ninety thousand, eight hundred sixty-seven".