11423613 has 4 divisors (see below), whose sum is σ = 15231488. Its totient is φ = 7615740.

The previous prime is 11423597. The next prime is 11423647. The reversal of 11423613 is 31632411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31632411 = 3 ⋅10544137.

It is not a de Polignac number, because 11423613 - 2⁴ = 11423597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11423613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11423683) 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, 1903933 + ... + 1903938.

It is an arithmetic number, because the mean of its divisors is an integer number (3807872).

Almost surely, 2^11423613 is an apocalyptic number.

It is an amenable number.

11423613 is a deficient number, since it is larger than the sum of its proper divisors (3807875).

11423613 is an equidigital number, since it uses as much as digits as its factorization.

11423613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807874.

The product of its digits is 432, while the sum is 21.

The square root of 11423613 is about 3379.8835778766. The cubic root of 11423613 is about 225.2169955950.

The spelling of 11423613 in words is "eleven million, four hundred twenty-three thousand, six hundred thirteen".