10721623 has 8 divisors (see below), whose sum is σ = 11982096. Its totient is φ = 9508800.

The previous prime is 10721621. The next prime is 10721653. The reversal of 10721623 is 32612701.

10721623 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 10721623 - 2¹ = 10721621 is a prime.

It is a super-2 number, since 2×10721623² = 229906399508258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10721594 and 10721603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10721621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11436 + ... + 12337.

It is an arithmetic number, because the mean of its divisors is an integer number (1497762).

Almost surely, 2^10721623 is an apocalyptic number.

10721623 is a deficient number, since it is larger than the sum of its proper divisors (1260473).

10721623 is a wasteful number, since it uses less digits than its factorization.

10721623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23825.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 10721623 is about 3274.3889506288. The cubic root of 10721623 is about 220.5058813088.

The spelling of 10721623 in words is "ten million, seven hundred twenty-one thousand, six hundred twenty-three".