4861641 has 4 divisors (see below), whose sum is σ = 6482192. Its totient is φ = 3241092.

The previous prime is 4861631. The next prime is 4861667. The reversal of 4861641 is 1461684.

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 4861641 - 2¹⁰ = 4860617 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 = 4861599 and 4861608.

It is not an unprimeable number, because it can be changed into a prime (4861601) 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, 810271 + ... + 810276.

It is an arithmetic number, because the mean of its divisors is an integer number (1620548).

Almost surely, 2^4861641 is an apocalyptic number.

It is an amenable number.

4861641 is a deficient number, since it is larger than the sum of its proper divisors (1620551).

4861641 is a wasteful number, since it uses less digits than its factorization.

4861641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620550.

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

The square root of 4861641 is about 2204.9129234507. The cubic root of 4861641 is about 169.4055477461.

The spelling of 4861641 in words is "four million, eight hundred sixty-one thousand, six hundred forty-one".