10991892 has 12 divisors (see below), whose sum is σ = 25647776. Its totient is φ = 3663960.

The previous prime is 10991881. The next prime is 10991909. The reversal of 10991892 is 29819901.

It is a happy number.

10991892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 10991892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457984 + ... + 458007.

Almost surely, 2^10991892 is an apocalyptic number.

10991892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10991892 is an abundant number, since it is smaller than the sum of its proper divisors (14655884).

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

10991892 is a wasteful number, since it uses less digits than its factorization.

10991892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915998 (or 915996 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 10991892 is about 3315.4022380399. The cubic root of 10991892 is about 222.3433531090.

The spelling of 10991892 in words is "ten million, nine hundred ninety-one thousand, eight hundred ninety-two".