4017641 has 4 divisors (see below), whose sum is σ = 4025412. Its totient is φ = 4009872.

The previous prime is 4017623. The next prime is 4017647. The reversal of 4017641 is 1467104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1755625 + 2262016 = 1325^2 + 1504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4017641 is a prime.

It is a super-2 number, since 2×4017641² = 32282878409762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4017647) 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, 3050 + ... + 4163.

It is an arithmetic number, because the mean of its divisors is an integer number (1006353).

Almost surely, 2^4017641 is an apocalyptic number.

It is an amenable number.

4017641 is a deficient number, since it is larger than the sum of its proper divisors (7771).

4017641 is an equidigital number, since it uses as much as digits as its factorization.

4017641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 4017641 is about 2004.4053981169. The cubic root of 4017641 is about 158.9731241575.

The spelling of 4017641 in words is "four million, seventeen thousand, six hundred forty-one".