10959721 has 4 divisors (see below), whose sum is σ = 10989952. Its totient is φ = 10929492.

The previous prime is 10959703. The next prime is 10959737. The reversal of 10959721 is 12795901.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12795901 = 31 ⋅412771.

It is a cyclic number.

It is not a de Polignac number, because 10959721 - 2⁹ = 10959209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10959761) 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, 14565 + ... + 15298.

It is an arithmetic number, because the mean of its divisors is an integer number (2747488).

Almost surely, 2^10959721 is an apocalyptic number.

It is an amenable number.

10959721 is a deficient number, since it is larger than the sum of its proper divisors (30231).

10959721 is an equidigital number, since it uses as much as digits as its factorization.

10959721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30230.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 10959721 is about 3310.5469336652. The cubic root of 10959721 is about 222.1262234332.

It can be divided in two parts, 1095 and 9721, that added together give a square (10816 = 104²).

The spelling of 10959721 in words is "ten million, nine hundred fifty-nine thousand, seven hundred twenty-one".