10866019 has 2 divisors, whose sum is σ = 10866020. Its totient is φ = 10866018.

The previous prime is 10866017. The next prime is 10866059. The reversal of 10866019 is 91066801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10866019 - 2¹ = 10866017 is a prime.

It is a super-2 number, since 2×10866019² = 236140737816722, which contains 22 as substring.

Together with 10866017, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10866013) 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 as a sum of consecutive naturals, namely, 5433009 + 5433010.

It is an arithmetic number, because the mean of its divisors is an integer number (5433010).

Almost surely, 2^10866019 is an apocalyptic number.

10866019 is a deficient number, since it is larger than the sum of its proper divisors (1).

10866019 is an equidigital number, since it uses as much as digits as its factorization.

10866019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 10866019 is about 3296.3645126108. The cubic root of 10866019 is about 221.4913754164.

The spelling of 10866019 in words is "ten million, eight hundred sixty-six thousand, nineteen".