10921744 has 20 divisors (see below), whose sum is σ = 21678300. Its totient is φ = 5327360.

The previous prime is 10921739. The next prime is 10921747. The reversal of 10921744 is 44712901.

It can be written as a sum of positive squares in 2 ways, for example, as 3952144 + 6969600 = 1988^2 + 2640^2 .

It is not an unprimeable number, because it can be changed into a prime (10921747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7669 + ... + 8980.

It is an arithmetic number, because the mean of its divisors is an integer number (1083915).

Almost surely, 2^10921744 is an apocalyptic number.

It is an amenable number.

10921744 is a deficient number, since it is larger than the sum of its proper divisors (10756556).

10921744 is a wasteful number, since it uses less digits than its factorization.

10921744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16698 (or 16692 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 10921744 is about 3304.8061970409. The cubic root of 10921744 is about 221.8693601423.

The spelling of 10921744 in words is "ten million, nine hundred twenty-one thousand, seven hundred forty-four".