392485 has 4 divisors (see below), whose sum is σ = 470988. Its totient is φ = 313984.

The previous prime is 392477. The next prime is 392489. The reversal of 392485 is 584293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584293 = 557 ⋅1049.

It can be written as a sum of positive squares in 2 ways, for example, as 103041 + 289444 = 321^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 392485 - 2³ = 392477 is a prime.

It is a d-powerful number, because it can be written as 3³ + 9³ + 4² + 2¹⁰ + 8² + 5⁸ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392489) 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, 39244 + ... + 39253.

It is an arithmetic number, because the mean of its divisors is an integer number (117747).

2³⁹²⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

392485 is a deficient number, since it is larger than the sum of its proper divisors (78503).

392485 is an equidigital number, since it uses as much as digits as its factorization.

392485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78502.

The product of its digits is 8640, while the sum is 31.

The square root of 392485 is about 626.4862328894. The cubic root of 392485 is about 73.2162848099.

The spelling of 392485 in words is "three hundred ninety-two thousand, four hundred eighty-five".