539797658 has 4 divisors (see below), whose sum is σ = 809696490. Its totient is φ = 269898828.

The previous prime is 539797639. The next prime is 539797663. The reversal of 539797658 is 856797935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 471454369 + 68343289 = 21713^2 + 8267^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 539797597 and 539797606.

It is an unprimeable number.

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, 134949413 + ... + 134949416.

Almost surely, 2^539797658 is an apocalyptic number.

539797658 is a deficient number, since it is larger than the sum of its proper divisors (269898832).

539797658 is a wasteful number, since it uses less digits than its factorization.

539797658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269898831.

The product of its digits is 14288400, while the sum is 59.

The square root of 539797658 is about 23233.5459626808. The cubic root of 539797658 is about 814.2235610331.

The spelling of 539797658 in words is "five hundred thirty-nine million, seven hundred ninety-seven thousand, six hundred fifty-eight".