538739 has 2 divisors, whose sum is σ = 538740. Its totient is φ = 538738.

The previous prime is 538723. The next prime is 538751. The reversal of 538739 is 937835.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538739 - 2⁴ = 538723 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 538699 and 538708.

It is not a weakly prime, because it can be changed into another prime (538709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269369 + 269370.

It is an arithmetic number, because the mean of its divisors is an integer number (269370).

2⁵³⁸⁷³⁹ is an apocalyptic number.

538739 is a deficient number, since it is larger than the sum of its proper divisors (1).

538739 is an equidigital number, since it uses as much as digits as its factorization.

538739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 538739 is about 733.9884195272. The cubic root of 538739 is about 81.3690924158.

The spelling of 538739 in words is "five hundred thirty-eight thousand, seven hundred thirty-nine".