538726739 has 2 divisors, whose sum is σ = 538726740. Its totient is φ = 538726738.

The previous prime is 538726687. The next prime is 538726751. The reversal of 538726739 is 937627835.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538726739 is a prime.

It is not a weakly prime, because it can be changed into another prime (538726789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269363369 + 269363370.

It is an arithmetic number, because the mean of its divisors is an integer number (269363370).

Almost surely, 2^538726739 is an apocalyptic number.

538726739 is a deficient number, since it is larger than the sum of its proper divisors (1).

538726739 is an equidigital number, since it uses as much as digits as its factorization.

538726739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 50.

The square root of 538726739 is about 23210.4876941438. The cubic root of 538726739 is about 813.6847512617.

The spelling of 538726739 in words is "five hundred thirty-eight million, seven hundred twenty-six thousand, seven hundred thirty-nine".