10991834 has 24 divisors (see below), whose sum is σ = 19247904. Its totient is φ = 4611600.

The previous prime is 10991833. The next prime is 10991839. The reversal of 10991834 is 43819901.

It is a junction number, because it is equal to n+sod(n) for n = 10991794 and 10991803.

It is not an unprimeable number, because it can be changed into a prime (10991831) 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, 51989 + ... + 52199.

It is an arithmetic number, because the mean of its divisors is an integer number (801996).

Almost surely, 2^10991834 is an apocalyptic number.

10991834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10991834 is a deficient number, since it is larger than the sum of its proper divisors (8256070).

10991834 is an equidigital number, since it uses as much as digits as its factorization.

10991834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 10991834 is about 3315.3934909751. The cubic root of 10991834 is about 222.3429620348.

The spelling of 10991834 in words is "ten million, nine hundred ninety-one thousand, eight hundred thirty-four".