539385997 has 2 divisors, whose sum is σ = 539385998. Its totient is φ = 539385996.

The previous prime is 539385953. The next prime is 539386007. The reversal of 539385997 is 799583935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 517380516 + 22005481 = 22746^2 + 4691^2 .

It is a cyclic number.

It is not a de Polignac number, because 539385997 - 2¹⁹ = 538861709 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539385097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269692998 + 269692999.

It is an arithmetic number, because the mean of its divisors is an integer number (269692999).

Almost surely, 2^539385997 is an apocalyptic number.

It is an amenable number.

539385997 is a deficient number, since it is larger than the sum of its proper divisors (1).

539385997 is an equidigital number, since it uses as much as digits as its factorization.

539385997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9185400, while the sum is 58.

The square root of 539385997 is about 23224.6850785969. The cubic root of 539385997 is about 814.0165270808.

The spelling of 539385997 in words is "five hundred thirty-nine million, three hundred eighty-five thousand, nine hundred ninety-seven".