10361866 has 4 divisors (see below), whose sum is σ = 15542802. Its totient is φ = 5180932.

The previous prime is 10361863. The next prime is 10361873. The reversal of 10361866 is 66816301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66816301 = 3413 ⋅19577.

It can be written as a sum of positive squares in only one way, i.e., 6477025 + 3884841 = 2545^2 + 1971^2 .

It is a super-3 number, since 3×10361866³ (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (10361863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2590465 + ... + 2590468.

Almost surely, 2^10361866 is an apocalyptic number.

10361866 is a deficient number, since it is larger than the sum of its proper divisors (5180936).

10361866 is an equidigital number, since it uses as much as digits as its factorization.

10361866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180935.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 10361866 is about 3218.9852438307. The cubic root of 10361866 is about 218.0114602734.

It can be divided in two parts, 103618 and 66, that added together give a square (103684 = 322²).

The spelling of 10361866 in words is "ten million, three hundred sixty-one thousand, eight hundred sixty-six".