10999871 has 2 divisors, whose sum is σ = 10999872. Its totient is φ = 10999870.

The previous prime is 10999861. The next prime is 10999949. The reversal of 10999871 is 17899901.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10999871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10999811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5499935 + 5499936.

It is an arithmetic number, because the mean of its divisors is an integer number (5499936).

Almost surely, 2^10999871 is an apocalyptic number.

10999871 is a deficient number, since it is larger than the sum of its proper divisors (1).

10999871 is an equidigital number, since it uses as much as digits as its factorization.

10999871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 44.

The square root of 10999871 is about 3316.6053428167. The cubic root of 10999871 is about 222.3971396795.

The spelling of 10999871 in words is "ten million, nine hundred ninety-nine thousand, eight hundred seventy-one".