68978982 has 8 divisors (see below), whose sum is σ = 137957976. Its totient is φ = 22992992.

The previous prime is 68978977. The next prime is 68979007. The reversal of 68978982 is 28987986.

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

68978982 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5748243 + ... + 5748254.

It is an arithmetic number, because the mean of its divisors is an integer number (17244747).

Almost surely, 2^68978982 is an apocalyptic number.

68978982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68978982 is a wasteful number, since it uses less digits than its factorization.

68978982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11496502.

The product of its digits is 3483648, while the sum is 57.

The square root of 68978982 is about 8305.3586316305. The cubic root of 68978982 is about 410.1149429860.

The spelling of 68978982 in words is "sixty-eight million, nine hundred seventy-eight thousand, nine hundred eighty-two".