10611881 has 6 divisors (see below), whose sum is σ = 12344490. Its totient is φ = 9095856.

The previous prime is 10611871. The next prime is 10611911. The reversal of 10611881 is 18811601.

10611881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9357481 + 1254400 = 3059^2 + 1120^2 .

It is not a de Polignac number, because 10611881 - 2⁶ = 10611817 is a prime.

It is a super-2 number, since 2×10611881² = 225224036716322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10611881.

It is not an unprimeable number, because it can be changed into a prime (10611871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108236 + ... + 108333.

It is an arithmetic number, because the mean of its divisors is an integer number (2057415).

Almost surely, 2^10611881 is an apocalyptic number.

It is an amenable number.

10611881 is a deficient number, since it is larger than the sum of its proper divisors (1732609).

10611881 is an equidigital number, since it uses as much as digits as its factorization.

10611881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216583 (or 216576 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 26.

The square root of 10611881 is about 3257.5882182989. The cubic root of 10611881 is about 219.7509647603.

The spelling of 10611881 in words is "ten million, six hundred eleven thousand, eight hundred eighty-one".