11017861 has 2 divisors, whose sum is σ = 11017862. Its totient is φ = 11017860.

The previous prime is 11017849. The next prime is 11017873. The reversal of 11017861 is 16871011.

It is a balanced prime because it is at equal distance from previous prime (11017849) and next prime (11017873).

It can be written as a sum of positive squares in only one way, i.e., 7756225 + 3261636 = 2785^2 + 1806^2 .

It is a cyclic number.

It is not a de Polignac number, because 11017861 - 2⁷ = 11017733 is a prime.

It is a super-2 number, since 2×11017861² = 242786522030642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11017801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5508930 + 5508931.

It is an arithmetic number, because the mean of its divisors is an integer number (5508931).

Almost surely, 2^11017861 is an apocalyptic number.

It is an amenable number.

11017861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11017861 is an equidigital number, since it uses as much as digits as its factorization.

11017861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 25.

The square root of 11017861 is about 3319.3163452735. The cubic root of 11017861 is about 222.5183152032.

Adding to 11017861 its reverse (16871011), we get a palindrome (27888872).

It can be divided in two parts, 110 and 17861, that added together give a palindrome (17971).

The spelling of 11017861 in words is "eleven million, seventeen thousand, eight hundred sixty-one".