108856405 has 16 divisors (see below), whose sum is σ = 153325440. Its totient is φ = 72626112.

The previous prime is 108856387. The next prime is 108856411. The reversal of 108856405 is 504658801.

It is a cyclic number.

It is not a de Polignac number, because 108856405 - 2¹¹ = 108854357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40735 + ... + 43324.

It is an arithmetic number, because the mean of its divisors is an integer number (9582840).

Almost surely, 2^108856405 is an apocalyptic number.

It is an amenable number.

108856405 is a deficient number, since it is larger than the sum of its proper divisors (44469035).

108856405 is an equidigital number, since it uses as much as digits as its factorization.

108856405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84108.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 108856405 is about 10433.4272892468. The cubic root of 108856405 is about 477.4757605816.

The spelling of 108856405 in words is "one hundred eight million, eight hundred fifty-six thousand, four hundred five".