4636861 has 4 divisors (see below), whose sum is σ = 4665472. Its totient is φ = 4608252.

The previous prime is 4636847. The next prime is 4636871. The reversal of 4636861 is 1686364.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4636861 - 2⁵ = 4636829 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 (4636871) 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, 14061 + ... + 14386.

It is an arithmetic number, because the mean of its divisors is an integer number (1166368).

Almost surely, 2^4636861 is an apocalyptic number.

It is an amenable number.

4636861 is a deficient number, since it is larger than the sum of its proper divisors (28611).

4636861 is a wasteful number, since it uses less digits than its factorization.

4636861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28610.

The product of its digits is 20736, while the sum is 34.

The square root of 4636861 is about 2153.3371774991. The cubic root of 4636861 is about 166.7533979694.

The spelling of 4636861 in words is "four million, six hundred thirty-six thousand, eight hundred sixty-one".