68859169 has 4 divisors (see below), whose sum is σ = 68901444. Its totient is φ = 68816896.

The previous prime is 68859151. The next prime is 68859229. The reversal of 68859169 is 96195886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57380625 + 11478544 = 7575^2 + 3388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68859169 is a prime.

It is a super-2 number, since 2×68859169² = 9483170310741122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68859139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18592 + ... + 21985.

It is an arithmetic number, because the mean of its divisors is an integer number (17225361).

Almost surely, 2^68859169 is an apocalyptic number.

It is an amenable number.

68859169 is a deficient number, since it is larger than the sum of its proper divisors (42275).

68859169 is a wasteful number, since it uses less digits than its factorization.

68859169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42274.

The product of its digits is 933120, while the sum is 52.

The square root of 68859169 is about 8298.1425029943. The cubic root of 68859169 is about 409.8773557419.

The spelling of 68859169 in words is "sixty-eight million, eight hundred fifty-nine thousand, one hundred sixty-nine".