10697861 has 4 divisors (see below), whose sum is σ = 10737900. Its totient is φ = 10657824.

The previous prime is 10697849. The next prime is 10697867. The reversal of 10697861 is 16879601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16879601 = 113 ⋅149377.

It can be written as a sum of positive squares in 2 ways, for example, as 1050625 + 9647236 = 1025^2 + 3106^2 .

It is a cyclic number.

It is not a de Polignac number, because 10697861 - 2²² = 6503557 is a prime.

It is a super-2 number, since 2×10697861² = 228888459950642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10697867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19616 + ... + 20153.

It is an arithmetic number, because the mean of its divisors is an integer number (2684475).

Almost surely, 2^10697861 is an apocalyptic number.

It is an amenable number.

10697861 is a deficient number, since it is larger than the sum of its proper divisors (40039).

10697861 is an equidigital number, since it uses as much as digits as its factorization.

10697861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40038.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 10697861 is about 3270.7584747272. The cubic root of 10697861 is about 220.3428607053.

The spelling of 10697861 in words is "ten million, six hundred ninety-seven thousand, eight hundred sixty-one".