68978674 has 8 divisors (see below), whose sum is σ = 103530240. Its totient is φ = 34468596.

The previous prime is 68978659. The next prime is 68978677. The reversal of 68978674 is 47687986.

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

It is not an unprimeable number, because it can be changed into a prime (68978677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5814 + ... + 13105.

It is an arithmetic number, because the mean of its divisors is an integer number (12941280).

Almost surely, 2^68978674 is an apocalyptic number.

68978674 is a deficient number, since it is larger than the sum of its proper divisors (34551566).

68978674 is a wasteful number, since it uses less digits than its factorization.

68978674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20744.

The product of its digits is 4064256, while the sum is 55.

The square root of 68978674 is about 8305.3400893642. The cubic root of 68978674 is about 410.1143325799.

The spelling of 68978674 in words is "sixty-eight million, nine hundred seventy-eight thousand, six hundred seventy-four".