10789921 has 4 divisors (see below), whose sum is σ = 11259072. Its totient is φ = 10320772.

The previous prime is 10789913. The next prime is 10789937. The reversal of 10789921 is 12998701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10789921 - 2³ = 10789913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10789901) 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, 234541 + ... + 234586.

It is an arithmetic number, because the mean of its divisors is an integer number (2814768).

Almost surely, 2^10789921 is an apocalyptic number.

It is an amenable number.

10789921 is a deficient number, since it is larger than the sum of its proper divisors (469151).

10789921 is an equidigital number, since it uses as much as digits as its factorization.

10789921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469150.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 10789921 is about 3284.8015160737. The cubic root of 10789921 is about 220.9731067512.

The spelling of 10789921 in words is "ten million, seven hundred eighty-nine thousand, nine hundred twenty-one".