392885 has 4 divisors (see below), whose sum is σ = 471468. Its totient is φ = 314304.

The previous prime is 392879. The next prime is 392893. The reversal of 392885 is 588293.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 253009 + 139876 = 503^2 + 374^2 .

It is a cyclic number.

It is not a de Polignac number, because 392885 - 2⁸ = 392629 is a prime.

It is a d-powerful number, because it can be written as 3 + 9² + 8² + 2¹¹ + 8² + 5⁸ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39284 + ... + 39293.

It is an arithmetic number, because the mean of its divisors is an integer number (117867).

2³⁹²⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

392885 is a deficient number, since it is larger than the sum of its proper divisors (78583).

392885 is an equidigital number, since it uses as much as digits as its factorization.

392885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78582.

The product of its digits is 17280, while the sum is 35.

The square root of 392885 is about 626.8053924465. The cubic root of 392885 is about 73.2411490896.

It can be divided in two parts, 39288 and 5, that added together give a palindrome (39293).

The spelling of 392885 in words is "three hundred ninety-two thousand, eight hundred eighty-five".