108445986 has 64 divisors (see below), whose sum is σ = 266342400. Its totient is φ = 32432400.

The previous prime is 108445979. The next prime is 108445991. The reversal of 108445986 is 689544801.

108445986 is a `hidden beast` number, since 10 + 8 + 44 + 598 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45771 + ... + 48081.

It is an arithmetic number, because the mean of its divisors is an integer number (4161600).

Almost surely, 2^108445986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108445986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133171200).

108445986 is an abundant number, since it is smaller than the sum of its proper divisors (157896414).

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

108445986 is a wasteful number, since it uses less digits than its factorization.

108445986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412 (or 2406 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 108445986 is about 10413.7402502655. The cubic root of 108445986 is about 476.8749325997.

The spelling of 108445986 in words is "one hundred eight million, four hundred forty-five thousand, nine hundred eighty-six".