4011601 has 4 divisors (see below), whose sum is σ = 4376304. Its totient is φ = 3646900.

The previous prime is 4011583. The next prime is 4011647. The reversal of 4011601 is 1061104.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4011601 is a prime.

It is a Duffinian number.

4011601 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4011671) 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, 182335 + ... + 182356.

It is an arithmetic number, because the mean of its divisors is an integer number (1094076).

Almost surely, 2^4011601 is an apocalyptic number.

It is an amenable number.

4011601 is a deficient number, since it is larger than the sum of its proper divisors (364703).

4011601 is a wasteful number, since it uses less digits than its factorization.

4011601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364702.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 4011601 is about 2002.8981501814. The cubic root of 4011601 is about 158.8934190727.

Adding to 4011601 its reverse (1061104), we get a palindrome (5072705).

It can be divided in two parts, 401 and 1601, that added together give a palindrome (2002).

The spelling of 4011601 in words is "four million, eleven thousand, six hundred one".