10866505 has 8 divisors (see below), whose sum is σ = 14042952. Its totient is φ = 8024448.

The previous prime is 10866481. The next prime is 10866509. The reversal of 10866505 is 50566801.

It can be written as a sum of positive squares in 4 ways, for example, as 29241 + 10837264 = 171^2 + 3292^2 .

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 10866505 - 2⁵ = 10866473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10866509) 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, 83524 + ... + 83653.

It is an arithmetic number, because the mean of its divisors is an integer number (1755369).

Almost surely, 2^10866505 is an apocalyptic number.

It is an amenable number.

10866505 is a deficient number, since it is larger than the sum of its proper divisors (3176447).

10866505 is a wasteful number, since it uses less digits than its factorization.

10866505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167195.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 10866505 is about 3296.4382293621. The cubic root of 10866505 is about 221.4946775520.

The spelling of 10866505 in words is "ten million, eight hundred sixty-six thousand, five hundred five".