539099389 has 2 divisors, whose sum is σ = 539099390. Its totient is φ = 539099388.

The previous prime is 539099371. The next prime is 539099399. The reversal of 539099389 is 983990935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525922489 + 13176900 = 22933^2 + 3630^2 .

It is a cyclic number.

It is not a de Polignac number, because 539099389 - 2⁷ = 539099261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539099329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269549694 + 269549695.

It is an arithmetic number, because the mean of its divisors is an integer number (269549695).

Almost surely, 2^539099389 is an apocalyptic number.

It is an amenable number.

539099389 is a deficient number, since it is larger than the sum of its proper divisors (1).

539099389 is an equidigital number, since it uses as much as digits as its factorization.

539099389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2361960, while the sum is 55.

The square root of 539099389 is about 23218.5139274675. The cubic root of 539099389 is about 813.8723230013.

The spelling of 539099389 in words is "five hundred thirty-nine million, ninety-nine thousand, three hundred eighty-nine".