108728523 has 12 divisors (see below), whose sum is σ = 157994928. Its totient is φ = 72050640.

The previous prime is 108728519. The next prime is 108728537. The reversal of 108728523 is 325827801.

108728523 is a `hidden beast` number, since 108 + 7 + 28 + 523 = 666.

It is not a de Polignac number, because 108728523 - 2² = 108728519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108728593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34668 + ... + 37673.

It is an arithmetic number, because the mean of its divisors is an integer number (13166244).

Almost surely, 2^108728523 is an apocalyptic number.

108728523 is a deficient number, since it is larger than the sum of its proper divisors (49266405).

108728523 is a wasteful number, since it uses less digits than its factorization.

108728523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72514 (or 72511 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 108728523 is about 10427.2970131286. The cubic root of 108728523 is about 477.2887114696.

The spelling of 108728523 in words is "one hundred eight million, seven hundred twenty-eight thousand, five hundred twenty-three".