10699861 has 2 divisors, whose sum is σ = 10699862. Its totient is φ = 10699860.

The previous prime is 10699859. The next prime is 10699889. The reversal of 10699861 is 16899601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9186961 + 1512900 = 3031^2 + 1230^2 .

It is a cyclic number.

It is not a de Polignac number, because 10699861 - 2¹ = 10699859 is a prime.

It is a super-2 number, since 2×10699861² = 228974050838642, which contains 22 as substring.

Together with 10699859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10699841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5349930 + 5349931.

It is an arithmetic number, because the mean of its divisors is an integer number (5349931).

Almost surely, 2^10699861 is an apocalyptic number.

It is an amenable number.

10699861 is a deficient number, since it is larger than the sum of its proper divisors (1).

10699861 is an equidigital number, since it uses as much as digits as its factorization.

10699861 is an evil number, because the sum of its binary digits is even.

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

The square root of 10699861 is about 3271.0641999203. The cubic root of 10699861 is about 220.3565911218.

The spelling of 10699861 in words is "ten million, six hundred ninety-nine thousand, eight hundred sixty-one".