4000613 has 4 divisors (see below), whose sum is σ = 4068480. Its totient is φ = 3932748.

The previous prime is 4000589. The next prime is 4000631. The reversal of 4000613 is 3160004.

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 not a de Polignac number, because 4000613 - 2⁸ = 4000357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000673) 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, 33845 + ... + 33962.

It is an arithmetic number, because the mean of its divisors is an integer number (1017120).

Almost surely, 2^4000613 is an apocalyptic number.

It is an amenable number.

4000613 is a deficient number, since it is larger than the sum of its proper divisors (67867).

4000613 is an equidigital number, since it uses as much as digits as its factorization.

4000613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67866.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 4000613 is about 2000.1532441291. The cubic root of 4000613 is about 158.7482137563.

Adding to 4000613 its reverse (3160004), we get a palindrome (7160617).

The spelling of 4000613 in words is "four million, six hundred thirteen", and thus it is an aban number.