392389 has 2 divisors, whose sum is σ = 392390. Its totient is φ = 392388.

The previous prime is 392383. The next prime is 392423. The reversal of 392389 is 983293.

It is an a-pointer prime, because the next prime (392423) can be obtained adding 392389 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390625 + 1764 = 625^2 + 42^2 .

It is a cyclic number.

It is not a de Polignac number, because 392389 - 2⁷ = 392261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (392383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196194 + 196195.

It is an arithmetic number, because the mean of its divisors is an integer number (196195).

2³⁹²³⁸⁹ is an apocalyptic number.

It is an amenable number.

392389 is a deficient number, since it is larger than the sum of its proper divisors (1).

392389 is an equidigital number, since it uses as much as digits as its factorization.

392389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 392389 is about 626.4096103988. The cubic root of 392389 is about 73.2103148692.

The spelling of 392389 in words is "three hundred ninety-two thousand, three hundred eighty-nine".