68449678 has 8 divisors (see below), whose sum is σ = 112008600. Its totient is φ = 31113480.

The previous prime is 68449673. The next prime is 68449681. The reversal of 68449678 is 87694486.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68449673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555653 + ... + 1555696.

It is an arithmetic number, because the mean of its divisors is an integer number (14001075).

Almost surely, 2^68449678 is an apocalyptic number.

68449678 is a deficient number, since it is larger than the sum of its proper divisors (43558922).

68449678 is a wasteful number, since it uses less digits than its factorization.

68449678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111362.

The product of its digits is 2322432, while the sum is 52.

The square root of 68449678 is about 8273.4320568915. The cubic root of 68449678 is about 409.0632550225.

The spelling of 68449678 in words is "sixty-eight million, four hundred forty-nine thousand, six hundred seventy-eight".