68170689 has 24 divisors (see below), whose sum is σ = 108164160. Its totient is φ = 41180832.

The previous prime is 68170681. The next prime is 68170693. The reversal of 68170689 is 98607186.

It is a happy number.

It is not a de Polignac number, because 68170689 - 2³ = 68170681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68170681) 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, 4734 + ... + 12599.

It is an arithmetic number, because the mean of its divisors is an integer number (4506840).

Almost surely, 2^68170689 is an apocalyptic number.

68170689 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

68170689 is a deficient number, since it is larger than the sum of its proper divisors (39993471).

68170689 is a wasteful number, since it uses less digits than its factorization.

68170689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17381 (or 17378 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 68170689 is about 8256.5543055199. The cubic root of 68170689 is about 408.5067413232.

The spelling of 68170689 in words is "sixty-eight million, one hundred seventy thousand, six hundred eighty-nine".