68708772 has 144 divisors (see below), whose sum is σ = 203374080. Its totient is φ = 19353600.

The previous prime is 68708771. The next prime is 68708777. The reversal of 68708772 is 27780786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68708771) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 355908 + ... + 356100.

It is an arithmetic number, because the mean of its divisors is an integer number (1412320).

Almost surely, 2^68708772 is an apocalyptic number.

68708772 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68708772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101687040).

68708772 is an abundant number, since it is smaller than the sum of its proper divisors (134665308).

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

68708772 is a wasteful number, since it uses less digits than its factorization.

68708772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 68708772 is about 8289.0754611115. The cubic root of 68708772 is about 409.5787304960.

The spelling of 68708772 in words is "sixty-eight million, seven hundred eight thousand, seven hundred seventy-two".