1108932891 has 32 divisors (see below), whose sum is σ = 1737415680. Its totient is φ = 621885600.

The previous prime is 1108932857. The next prime is 1108932901. The reversal of 1108932891 is 1982398011.

It is not a de Polignac number, because 1108932891 - 2¹¹ = 1108930843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1108932841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6396 + ... + 47526.

It is an arithmetic number, because the mean of its divisors is an integer number (54294240).

Almost surely, 2^1108932891 is an apocalyptic number.

1108932891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1108932891 is a deficient number, since it is larger than the sum of its proper divisors (628482789).

1108932891 is a wasteful number, since it uses less digits than its factorization.

1108932891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41207.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 1108932891 is about 33300.6440027817. The cubic root of 1108932891 is about 1035.0669022543.

The spelling of 1108932891 in words is "one billion, one hundred eight million, nine hundred thirty-two thousand, eight hundred ninety-one".