4636641 has 4 divisors (see below), whose sum is σ = 6182192. Its totient is φ = 3091092.

The previous prime is 4636613. The next prime is 4636651. The reversal of 4636641 is 1466364.

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 not a de Polignac number, because 4636641 - 2⁵ = 4636609 is a prime.

It is a D-number.

It is a Duffinian number.

4636641 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4636599 and 4636608.

It is not an unprimeable number, because it can be changed into a prime (4636651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772771 + ... + 772776.

It is an arithmetic number, because the mean of its divisors is an integer number (1545548).

Almost surely, 2^4636641 is an apocalyptic number.

It is an amenable number.

4636641 is a deficient number, since it is larger than the sum of its proper divisors (1545551).

4636641 is a wasteful number, since it uses less digits than its factorization.

4636641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545550.

The product of its digits is 10368, while the sum is 30.

The square root of 4636641 is about 2153.2860933931. The cubic root of 4636641 is about 166.7507606732.

The spelling of 4636641 in words is "four million, six hundred thirty-six thousand, six hundred forty-one".