68368389 has 8 divisors (see below), whose sum is σ = 91685472. Its totient is φ = 45315120.

The previous prime is 68368387. The next prime is 68368411. The reversal of 68368389 is 98386386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68368389 - 2¹ = 68368387 is a prime.

It is a super-2 number, since 2×68368389² = 9348473228910642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68368387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65347 + ... + 66384.

It is an arithmetic number, because the mean of its divisors is an integer number (11460684).

Almost surely, 2^68368389 is an apocalyptic number.

It is an amenable number.

68368389 is a deficient number, since it is larger than the sum of its proper divisors (23317083).

68368389 is a wasteful number, since it uses less digits than its factorization.

68368389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131907.

The product of its digits is 1492992, while the sum is 51.

The square root of 68368389 is about 8268.5179445896. The cubic root of 68368389 is about 408.9012600320.

It can be divided in two parts, 6836 and 8389, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 68368389 in words is "sixty-eight million, three hundred sixty-eight thousand, three hundred eighty-nine".