68317020 has 72 divisors (see below), whose sum is σ = 214918704. Its totient is φ = 18216576.

The previous prime is 68317009. The next prime is 68317031. The reversal of 68317020 is 2071386.

It is an interprime number because it is at equal distance from previous prime (68317009) and next prime (68317031).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 23 ways as a sum of consecutive naturals, for example, 2169 + ... + 11888.

It is an arithmetic number, because the mean of its divisors is an integer number (2984982).

Almost surely, 2^68317020 is an apocalyptic number.

68317020 is a gapful number since it is divisible by the number (60) 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 68317020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107459352).

68317020 is an abundant number, since it is smaller than the sum of its proper divisors (146601684).

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

68317020 is a wasteful number, since it uses less digits than its factorization.

68317020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14081 (or 14067 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 68317020 is about 8265.4110605583. The cubic root of 68317020 is about 408.7988242326.

The spelling of 68317020 in words is "sixty-eight million, three hundred seventeen thousand, twenty".