390873 has 12 divisors (see below), whose sum is σ = 606480. Its totient is φ = 223272.

The previous prime is 390869. The next prime is 390877. The reversal of 390873 is 378093.

It is an interprime number because it is at equal distance from previous prime (390869) and next prime (390877).

It is not a de Polignac number, because 390873 - 2² = 390869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 390873.

It is not an unprimeable number, because it can be changed into a prime (390877) 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 11 ways as a sum of consecutive naturals, for example, 1183 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (50540).

2³⁹⁰⁸⁷³ is an apocalyptic number.

It is an amenable number.

390873 is a deficient number, since it is larger than the sum of its proper divisors (215607).

390873 is a wasteful number, since it uses less digits than its factorization.

390873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676 (or 2669 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 390873 is about 625.1983685199. The cubic root of 390873 is about 73.1159101858.

The spelling of 390873 in words is "three hundred ninety thousand, eight hundred seventy-three".