108431973 has 16 divisors (see below), whose sum is σ = 172997440. Its totient is φ = 66727152.

The previous prime is 108431963. The next prime is 108431989. The reversal of 108431973 is 379134801.

It is a happy number.

It is not a de Polignac number, because 108431973 - 2²⁶ = 41323109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108431963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154111 + ... + 154812.

It is an arithmetic number, because the mean of its divisors is an integer number (10812340).

Almost surely, 2^108431973 is an apocalyptic number.

108431973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

108431973 is a deficient number, since it is larger than the sum of its proper divisors (64565467).

108431973 is a wasteful number, since it uses less digits than its factorization.

108431973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308945 (or 308939 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 108431973 is about 10413.0674155121. The cubic root of 108431973 is about 476.8543916942.

The spelling of 108431973 in words is "one hundred eight million, four hundred thirty-one thousand, nine hundred seventy-three".