68417712 has 120 divisors (see below), whose sum is σ = 213557760. Its totient is φ = 20269440.

The previous prime is 68417693. The next prime is 68417719. The reversal of 68417712 is 21771486.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68417719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73989 + ... + 74907.

It is an arithmetic number, because the mean of its divisors is an integer number (1779648).

Almost surely, 2^68417712 is an apocalyptic number.

It is a pronic number, being equal to 8271×8272.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68417712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106778880).

68417712 is an abundant number, since it is smaller than the sum of its proper divisors (145140048).

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

68417712 is a wasteful number, since it uses less digits than its factorization.

68417712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 982 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 68417712 is about 8271.4999848879. The cubic root of 68417712 is about 408.9995675934. Note that the first 3 decimals are identical.

The spelling of 68417712 in words is "sixty-eight million, four hundred seventeen thousand, seven hundred twelve".