68647152 has 80 divisors (see below), whose sum is σ = 213359360. Its totient is φ = 18579456.

The previous prime is 68647141. The next prime is 68647169. The reversal of 68647152 is 25174686.

It is a super-2 number, since 2×68647152² = 9424862955422208, 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 68647152.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 1008 + ... + 11760.

It is an arithmetic number, because the mean of its divisors is an integer number (2666992).

Almost surely, 2^68647152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68647152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106679680).

68647152 is an abundant number, since it is smaller than the sum of its proper divisors (144712208).

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

68647152 is a wasteful number, since it uses less digits than its factorization.

68647152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10790 (or 10784 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 68647152 is about 8285.3576869077. The cubic root of 68647152 is about 409.4562532189.

The spelling of 68647152 in words is "sixty-eight million, six hundred forty-seven thousand, one hundred fifty-two".