10861969 has 2 divisors, whose sum is σ = 10861970. Its totient is φ = 10861968.

The previous prime is 10861943. The next prime is 10861993. The reversal of 10861969 is 96916801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10804369 + 57600 = 3287^2 + 240^2 .

It is a cyclic number.

It is not a de Polignac number, because 10861969 - 2⁵ = 10861937 is a prime.

It is a super-2 number, since 2×10861969² = 235964741113922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10861909) 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, 5430984 + 5430985.

It is an arithmetic number, because the mean of its divisors is an integer number (5430985).

Almost surely, 2^10861969 is an apocalyptic number.

It is an amenable number.

10861969 is a deficient number, since it is larger than the sum of its proper divisors (1).

10861969 is an equidigital number, since it uses as much as digits as its factorization.

10861969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 10861969 is about 3295.7501422286. The cubic root of 10861969 is about 221.4638537901.

The spelling of 10861969 in words is "ten million, eight hundred sixty-one thousand, nine hundred sixty-nine".