10757921 has 4 divisors (see below), whose sum is σ = 10771332. Its totient is φ = 10744512.

The previous prime is 10757911. The next prime is 10757953. The reversal of 10757921 is 12975701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10471696 + 286225 = 3236^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 10757921 - 2¹⁰ = 10756897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10757911) 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, 5420 + ... + 7133.

It is an arithmetic number, because the mean of its divisors is an integer number (2692833).

Almost surely, 2^10757921 is an apocalyptic number.

It is an amenable number.

10757921 is a deficient number, since it is larger than the sum of its proper divisors (13411).

10757921 is an equidigital number, since it uses as much as digits as its factorization.

10757921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13410.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 10757921 is about 3279.9269808945. The cubic root of 10757921 is about 220.7544415320.

The spelling of 10757921 in words is "ten million, seven hundred fifty-seven thousand, nine hundred twenty-one".