68378829 has 8 divisors (see below), whose sum is σ = 91340640. Its totient is φ = 45501456.

The previous prime is 68378797. The next prime is 68378831. The reversal of 68378829 is 92887386.

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

It is not a de Polignac number, because 68378829 - 2⁵ = 68378797 is a prime.

It is a super-2 number, since 2×68378829² = 9351328510822482, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68378129) 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 7 ways as a sum of consecutive naturals, for example, 19194 + ... + 22475.

It is an arithmetic number, because the mean of its divisors is an integer number (11417580).

Almost surely, 2^68378829 is an apocalyptic number.

It is an amenable number.

68378829 is a deficient number, since it is larger than the sum of its proper divisors (22961811).

68378829 is a wasteful number, since it uses less digits than its factorization.

68378829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42219.

The product of its digits is 1161216, while the sum is 51.

The square root of 68378829 is about 8269.1492307250. The cubic root of 68378829 is about 408.9220723398.

The spelling of 68378829 in words is "sixty-eight million, three hundred seventy-eight thousand, eight hundred twenty-nine".