3613823 has 4 divisors (see below), whose sum is σ = 3673128. Its totient is φ = 3554520.

The previous prime is 3613811. The next prime is 3613837. The reversal of 3613823 is 3283163.

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

It is a cyclic number.

It is not a de Polignac number, because 3613823 - 2⁴ = 3613807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3613792 and 3613801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3613123) 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, 29561 + ... + 29682.

It is an arithmetic number, because the mean of its divisors is an integer number (918282).

Almost surely, 2^3613823 is an apocalyptic number.

3613823 is a deficient number, since it is larger than the sum of its proper divisors (59305).

3613823 is an equidigital number, since it uses as much as digits as its factorization.

3613823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59304.

The product of its digits is 2592, while the sum is 26.

The square root of 3613823 is about 1901.0057864194. The cubic root of 3613823 is about 153.4577969687.

Adding to 3613823 its reverse (3283163), we get a palindrome (6896986).

The spelling of 3613823 in words is "three million, six hundred thirteen thousand, eight hundred twenty-three".