4395861 has 12 divisors (see below), whose sum is σ = 6409260. Its totient is φ = 2903040.

The previous prime is 4395857. The next prime is 4395869. The reversal of 4395861 is 1685934.

It can be written as a sum of positive squares in 2 ways, for example, as 3261636 + 1134225 = 1806^2 + 1065^2 .

It is not a de Polignac number, because 4395861 - 2² = 4395857 is a prime.

4395861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4395869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1260 + ... + 3221.

It is an arithmetic number, because the mean of its divisors is an integer number (534105).

Almost surely, 2^4395861 is an apocalyptic number.

It is an amenable number.

4395861 is a deficient number, since it is larger than the sum of its proper divisors (2013399).

4395861 is a wasteful number, since it uses less digits than its factorization.

4395861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596 (or 4593 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 4395861 is about 2096.6308687988. The cubic root of 4395861 is about 163.8128566257.

The spelling of 4395861 in words is "four million, three hundred ninety-five thousand, eight hundred sixty-one".