10880821 has 8 divisors (see below), whose sum is σ = 12610944. Its totient is φ = 9194640.

The previous prime is 10880813. The next prime is 10880897. The reversal of 10880821 is 12808801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10880821 - 2³ = 10880813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10880821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10880321) 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, 10450 + ... + 11443.

It is an arithmetic number, because the mean of its divisors is an integer number (1576368).

Almost surely, 2^10880821 is an apocalyptic number.

It is an amenable number.

10880821 is a deficient number, since it is larger than the sum of its proper divisors (1730123).

10880821 is an equidigital number, since it uses as much as digits as its factorization.

10880821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21971.

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 10880821 is about 3298.6089492391. The cubic root of 10880821 is about 221.5919037322.

The spelling of 10880821 in words is "ten million, eight hundred eighty thousand, eight hundred twenty-one".