10004861 has 4 divisors (see below), whose sum is σ = 10248924. Its totient is φ = 9760800.

The previous prime is 10004851. The next prime is 10004879. The reversal of 10004861 is 16840001.

10004861 = T₆₇₈ + T₆₇₉ + ... + T₇₁₈.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16840001 = 607 ⋅27743.

It can be written as a sum of positive squares in 2 ways, for example, as 4687225 + 5317636 = 2165^2 + 2306^2 .

It is a cyclic number.

It is not a de Polignac number, because 10004861 - 2²² = 5810557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10004801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121970 + ... + 122051.

It is an arithmetic number, because the mean of its divisors is an integer number (2562231).

Almost surely, 2^10004861 is an apocalyptic number.

It is an amenable number.

10004861 is a deficient number, since it is larger than the sum of its proper divisors (244063).

10004861 is an equidigital number, since it uses as much as digits as its factorization.

10004861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244062.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 10004861 is about 3163.0461583733. The cubic root of 10004861 is about 215.4783723717.

Adding to 10004861 its reverse (16840001), we get a palindrome (26844862).

The spelling of 10004861 in words is "ten million, four thousand, eight hundred sixty-one".