10723521 has 8 divisors (see below), whose sum is σ = 14459040. Its totient is φ = 7068512.

The previous prime is 10723483. The next prime is 10723523. The reversal of 10723521 is 12532701.

10723521 is digitally balanced in base 3, 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 10723521 - 2¹³ = 10715329 is a prime.

It is a super-2 number, since 2×10723521² = 229987805274882, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10723523) 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, 19815 + ... + 20348.

It is an arithmetic number, because the mean of its divisors is an integer number (1807380).

Almost surely, 2^10723521 is an apocalyptic number.

It is an amenable number.

10723521 is a deficient number, since it is larger than the sum of its proper divisors (3735519).

10723521 is an equidigital number, since it uses as much as digits as its factorization.

10723521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40255.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 10723521 is about 3274.6787628713. The cubic root of 10723521 is about 220.5188922578.

The spelling of 10723521 in words is "ten million, seven hundred twenty-three thousand, five hundred twenty-one".