11070865 has 16 divisors (see below), whose sum is σ = 14401296. Its totient is φ = 8121600.

The previous prime is 11070853. The next prime is 11070869. The reversal of 11070865 is 56807011.

It is a happy number.

11070865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

11070865 is a nontrivial binomial coefficient, being equal to C(4706, 2).

It can be written as a sum of positive squares in 8 ways, for example, as 2982529 + 8088336 = 1727^2 + 2844^2 .

It is not a de Polignac number, because 11070865 - 2¹¹ = 11068817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11070869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11295 + ... + 12235.

It is an arithmetic number, because the mean of its divisors is an integer number (900081).

Almost surely, 2^11070865 is an apocalyptic number.

11070865 is the 4705-th triangular number and also the 2353-rd hexagonal number.

11070865 is the 1569-th centered nonagonal number.

It is an amenable number.

11070865 is a deficient number, since it is larger than the sum of its proper divisors (3330431).

11070865 is a wasteful number, since it uses less digits than its factorization.

11070865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 11070865 is about 3327.2909400892. The cubic root of 11070865 is about 222.8745700149.

Adding to 11070865 its reverse (56807011), we get a palindrome (67877876).

It can be divided in two parts, 11070 and 865, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 11070865 in words is "eleven million, seventy thousand, eight hundred sixty-five".