10628821 has 8 divisors (see below), whose sum is σ = 12202560. Its totient is φ = 9068928.

The previous prime is 10628801. The next prime is 10628837. The reversal of 10628821 is 12882601.

10628821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10628821 - 2⁹ = 10628309 is a prime.

It is a super-2 number, since 2×10628821² = 225943671700082, which contains 22 as substring.

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 10628821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10628801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1756 + ... + 4933.

It is an arithmetic number, because the mean of its divisors is an integer number (1525320).

Almost surely, 2^10628821 is an apocalyptic number.

It is an amenable number.

10628821 is a deficient number, since it is larger than the sum of its proper divisors (1573739).

10628821 is an equidigital number, since it uses as much as digits as its factorization.

10628821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6923.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 10628821 is about 3260.1872645601. The cubic root of 10628821 is about 219.8678338395.

It can be divided in two parts, 10628 and 821, that added together give a square (11449 = 107²).

The spelling of 10628821 in words is "ten million, six hundred twenty-eight thousand, eight hundred twenty-one".