108891849 has 16 divisors (see below), whose sum is σ = 159344640. Its totient is φ = 65596560.

The previous prime is 108891841. The next prime is 108891863. The reversal of 108891849 is 948198801.

It is not a de Polignac number, because 108891849 - 2³ = 108891841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 108891798 and 108891807.

It is not an unprimeable number, because it can be changed into a prime (108891841) 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, 4369 + ... + 15390.

It is an arithmetic number, because the mean of its divisors is an integer number (9959040).

Almost surely, 2^108891849 is an apocalyptic number.

It is an amenable number.

108891849 is a deficient number, since it is larger than the sum of its proper divisors (50452791).

108891849 is a wasteful number, since it uses less digits than its factorization.

108891849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19940.

The product of its (nonzero) digits is 165888, while the sum is 48.

The square root of 108891849 is about 10435.1257299565. The cubic root of 108891849 is about 477.5275775124.

The spelling of 108891849 in words is "one hundred eight million, eight hundred ninety-one thousand, eight hundred forty-nine".