68730036 has 12 divisors (see below), whose sum is σ = 160370112. Its totient is φ = 22910008.

The previous prime is 68730017. The next prime is 68730037. The reversal of 68730036 is 63003786.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×68730036² = 9447635697122592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68729979 and 68730006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68730037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2863740 + ... + 2863763.

It is an arithmetic number, because the mean of its divisors is an integer number (13364176).

Almost surely, 2^68730036 is an apocalyptic number.

It is an amenable number.

68730036 is an abundant number, since it is smaller than the sum of its proper divisors (91640076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68730036 is a wasteful number, since it uses less digits than its factorization.

68730036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727510 (or 5727508 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 68730036 is about 8290.3580139823. The cubic root of 68730036 is about 409.6209782982.

The spelling of 68730036 in words is "sixty-eight million, seven hundred thirty thousand, thirty-six".