108648978 has 8 divisors (see below), whose sum is σ = 217297968. Its totient is φ = 36216324.

The previous prime is 108648961. The next prime is 108648979. The reversal of 108648978 is 879846801.

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

108648978 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 108648978.

It is not an unprimeable number, because it can be changed into a prime (108648979) 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, 9054076 + ... + 9054087.

It is an arithmetic number, because the mean of its divisors is an integer number (27162246).

Almost surely, 2^108648978 is an apocalyptic number.

108648978 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.

108648978 is a wasteful number, since it uses less digits than its factorization.

108648978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18108168.

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 108648978 is about 10423.4820477612. The cubic root of 108648978 is about 477.1722894189.

The spelling of 108648978 in words is "one hundred eight million, six hundred forty-eight thousand, nine hundred seventy-eight".