4068613 has 4 divisors (see below), whose sum is σ = 4208940. Its totient is φ = 3928288.

The previous prime is 4068611. The next prime is 4068619. The reversal of 4068613 is 3168604.

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 2169729 + 1898884 = 1473^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 4068613 - 2¹ = 4068611 is a prime.

It is a super-2 number, since 2×4068613² = 33107223487538, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4068611) 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, 70120 + ... + 70177.

It is an arithmetic number, because the mean of its divisors is an integer number (1052235).

Almost surely, 2^4068613 is an apocalyptic number.

It is an amenable number.

4068613 is a deficient number, since it is larger than the sum of its proper divisors (140327).

4068613 is a wasteful number, since it uses less digits than its factorization.

4068613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140326.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 4068613 is about 2017.0803157039. The cubic root of 4068613 is about 159.6426006928.

Subtracting from 4068613 its reverse (3168604), we obtain a palindrome (900009).

The spelling of 4068613 in words is "four million, sixty-eight thousand, six hundred thirteen".