392489 has 2 divisors, whose sum is σ = 392490. Its totient is φ = 392488.

The previous prime is 392477. The next prime is 392503. The reversal of 392489 is 984293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 350464 + 42025 = 592^2 + 205^2 .

It is a cyclic number.

It is not a de Polignac number, because 392489 - 2⁴ = 392473 is a prime.

It is not a weakly prime, because it can be changed into another prime (392389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196244 + 196245.

It is an arithmetic number, because the mean of its divisors is an integer number (196245).

2³⁹²⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

392489 is a deficient number, since it is larger than the sum of its proper divisors (1).

392489 is an equidigital number, since it uses as much as digits as its factorization.

392489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 392489 is about 626.4894252898. The cubic root of 392489 is about 73.2165335363.

The spelling of 392489 in words is "three hundred ninety-two thousand, four hundred eighty-nine".