68847156 has 108 divisors (see below), whose sum is σ = 209139840. Its totient is φ = 19020960.

The previous prime is 68847143. The next prime is 68847179. The reversal of 68847156 is 65174886.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 54055 + ... + 55313.

It is an arithmetic number, because the mean of its divisors is an integer number (1936480).

Almost surely, 2^68847156 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 68847156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104569920).

68847156 is an abundant number, since it is smaller than the sum of its proper divisors (140292684).

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

68847156 is a wasteful number, since it uses less digits than its factorization.

68847156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314 (or 1302 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 68847156 is about 8297.4186347321. The cubic root of 68847156 is about 409.8535189598.

The spelling of 68847156 in words is "sixty-eight million, eight hundred forty-seven thousand, one hundred fifty-six".