10721611 has 12 divisors (see below), whose sum is σ = 11891952. Its totient is φ = 9646208.

The previous prime is 10721603. The next prime is 10721621. The reversal of 10721611 is 11612701.

10721611 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10721611 - 2³ = 10721603 is a prime.

It is a super-2 number, since 2×10721611² = 229905884870642, which contains 22 as substring.

It is a Duffinian number.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5841 + ... + 7453.

It is an arithmetic number, because the mean of its divisors is an integer number (990996).

Almost surely, 2^10721611 is an apocalyptic number.

10721611 is a deficient number, since it is larger than the sum of its proper divisors (1170341).

10721611 is a wasteful number, since it uses less digits than its factorization.

10721611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670 (or 1653 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 10721611 is about 3274.3871182253. The cubic root of 10721611 is about 220.5057990430.

The spelling of 10721611 in words is "ten million, seven hundred twenty-one thousand, six hundred eleven".