4000611 has 4 divisors (see below), whose sum is σ = 5334152. Its totient is φ = 2667072.

The previous prime is 4000589. The next prime is 4000631. The reversal of 4000611 is 1160004.

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

It is not a de Polignac number, because 4000611 - 2¹³ = 3992419 is a prime.

It is a D-number.

It is a Duffinian number.

4000611 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000631) 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, 666766 + ... + 666771.

It is an arithmetic number, because the mean of its divisors is an integer number (1333538).

Almost surely, 2^4000611 is an apocalyptic number.

4000611 is a deficient number, since it is larger than the sum of its proper divisors (1333541).

4000611 is a wasteful number, since it uses less digits than its factorization.

4000611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333540.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 4000611 is about 2000.1527441673. The cubic root of 4000611 is about 158.7481873023.

Adding to 4000611 its reverse (1160004), we get a palindrome (5160615).

The spelling of 4000611 in words is "four million, six hundred eleven", and thus it is an aban number.