492389 has 2 divisors, whose sum is σ = 492390. Its totient is φ = 492388.

The previous prime is 492377. The next prime is 492397. The reversal of 492389 is 983294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297025 + 195364 = 545^2 + 442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-492389 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492319) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246194 + 246195.

It is an arithmetic number, because the mean of its divisors is an integer number (246195).

2⁴⁹²³⁸⁹ is an apocalyptic number.

It is an amenable number.

492389 is a deficient number, since it is larger than the sum of its proper divisors (1).

492389 is an equidigital number, since it uses as much as digits as its factorization.

492389 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 492389 is about 701.7043536989. The cubic root of 492389 is about 78.9652680739.

The spelling of 492389 in words is "four hundred ninety-two thousand, three hundred eighty-nine".