68660936 has 8 divisors (see below), whose sum is σ = 128739270. Its totient is φ = 34330464.

The previous prime is 68660923. The next prime is 68660941. The reversal of 68660936 is 63906686.

It can be written as a sum of positive squares in only one way, i.e., 67338436 + 1322500 = 8206^2 + 1150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4291301 + ... + 4291316.

Almost surely, 2^68660936 is an apocalyptic number.

It is an amenable number.

68660936 is a deficient number, since it is larger than the sum of its proper divisors (60078334).

68660936 is a wasteful number, since it uses less digits than its factorization.

68660936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582623 (or 8582619 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 68660936 is about 8286.1894740586. The cubic root of 68660936 is about 409.4836569645.

It can be divided in two parts, 68660 and 936, that added together give a palindrome (69596).

The spelling of 68660936 in words is "sixty-eight million, six hundred sixty thousand, nine hundred thirty-six".