4681641 has 4 divisors (see below), whose sum is σ = 6242192. Its totient is φ = 3121092.

The previous prime is 4681639. The next prime is 4681661. The reversal of 4681641 is 1461864.

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 4681641 - 2¹ = 4681639 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4681599 and 4681608.

It is not an unprimeable number, because it can be changed into a prime (4681631) 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, 780271 + ... + 780276.

It is an arithmetic number, because the mean of its divisors is an integer number (1560548).

Almost surely, 2^4681641 is an apocalyptic number.

It is an amenable number.

4681641 is a deficient number, since it is larger than the sum of its proper divisors (1560551).

4681641 is a wasteful number, since it uses less digits than its factorization.

4681641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560550.

The product of its digits is 4608, while the sum is 30.

The square root of 4681641 is about 2163.7100082959. The cubic root of 4681641 is about 167.2884803127.

The spelling of 4681641 in words is "four million, six hundred eighty-one thousand, six hundred forty-one".