539967698 has 4 divisors (see below), whose sum is σ = 809951550. Its totient is φ = 269983848.

The previous prime is 539967691. The next prime is 539967737. The reversal of 539967698 is 896769935.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 896769935 = 5 ⋅179353987.

It can be written as a sum of positive squares in only one way, i.e., 471193849 + 68773849 = 21707^2 + 8293^2 .

It is a super-2 number, since 2×539967698² = 583130229766838408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 539967698.

It is not an unprimeable number, because it can be changed into a prime (539967691) 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, 134991923 + ... + 134991926.

Almost surely, 2^539967698 is an apocalyptic number.

539967698 is a deficient number, since it is larger than the sum of its proper divisors (269983852).

539967698 is a wasteful number, since it uses less digits than its factorization.

539967698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269983851.

The product of its digits is 22044960, while the sum is 62.

The square root of 539967698 is about 23237.2050384722. The cubic root of 539967698 is about 814.3090474107.

The spelling of 539967698 in words is "five hundred thirty-nine million, nine hundred sixty-seven thousand, six hundred ninety-eight".