10931808 has 48 divisors (see below), whose sum is σ = 29949696. Its totient is φ = 3484800.

The previous prime is 10931807. The next prime is 10931827. The reversal of 10931808 is 80813901.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×10931808² = 239008852297728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10931801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268 + ... + 4683.

It is an arithmetic number, because the mean of its divisors is an integer number (623952).

Almost surely, 2^10931808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10931808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14974848).

10931808 is an abundant number, since it is smaller than the sum of its proper divisors (19017888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10931808 is a wasteful number, since it uses less digits than its factorization.

10931808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987 (or 4979 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 10931808 is about 3306.3284773295. The cubic root of 10931808 is about 221.9374874715.

The spelling of 10931808 in words is "ten million, nine hundred thirty-one thousand, eight hundred eight".