68978108 has 12 divisors (see below), whose sum is σ = 122513832. Its totient is φ = 33974160.

The previous prime is 68978089. The next prime is 68978141. The reversal of 68978108 is 80187986.

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, 128423 + ... + 128958.

It is an arithmetic number, because the mean of its divisors is an integer number (10209486).

Almost surely, 2^68978108 is an apocalyptic number.

It is an amenable number.

68978108 is a deficient number, since it is larger than the sum of its proper divisors (53535724).

68978108 is a wasteful number, since it uses less digits than its factorization.

68978108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257452 (or 257450 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 68978108 is about 8305.3060148317. The cubic root of 68978108 is about 410.1132108547.

The spelling of 68978108 in words is "sixty-eight million, nine hundred seventy-eight thousand, one hundred eight".