68170312 has 32 divisors (see below), whose sum is σ = 146361600. Its totient is φ = 29159424.

The previous prime is 68170283. The next prime is 68170313. The reversal of 68170312 is 21307186.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (68170313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42273 + ... + 43855.

It is an arithmetic number, because the mean of its divisors is an integer number (4573800).

Almost surely, 2^68170312 is an apocalyptic number.

It is an amenable number.

68170312 is an abundant number, since it is smaller than the sum of its proper divisors (78191288).

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

68170312 is a wasteful number, since it uses less digits than its factorization.

68170312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365 (or 2361 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 68170312 is about 8256.5314751414. The cubic root of 68170312 is about 408.5059882756.

Adding to 68170312 its reverse (21307186), we get a palindrome (89477498).

The spelling of 68170312 in words is "sixty-eight million, one hundred seventy thousand, three hundred twelve".