10720881 has 6 divisors (see below), whose sum is σ = 15485730. Its totient is φ = 7147248.

The previous prime is 10720877. The next prime is 10720891. The reversal of 10720881 is 18802701.

10720881 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., 10342656 + 378225 = 3216^2 + 615^2 .

It is not a de Polignac number, because 10720881 - 2² = 10720877 is a prime.

It is a super-2 number, since 2×10720881² = 229874578832322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10720891) 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, 595596 + ... + 595613.

It is an arithmetic number, because the mean of its divisors is an integer number (2580955).

Almost surely, 2^10720881 is an apocalyptic number.

It is an amenable number.

10720881 is a deficient number, since it is larger than the sum of its proper divisors (4764849).

10720881 is a wasteful number, since it uses less digits than its factorization.

10720881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191215 (or 1191212 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 10720881 is about 3274.2756450855. The cubic root of 10720881 is about 220.5007944192.

The spelling of 10720881 in words is "ten million, seven hundred twenty thousand, eight hundred eighty-one".