11828613 has 4 divisors (see below), whose sum is σ = 15771488. Its totient is φ = 7885740.

The previous prime is 11828603. The next prime is 11828629. The reversal of 11828613 is 31682811.

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: 31682811 = 3 ⋅10560937.

It is not a de Polignac number, because 11828613 - 2⁸ = 11828357 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 (11828603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1971433 + ... + 1971438.

It is an arithmetic number, because the mean of its divisors is an integer number (3942872).

Almost surely, 2^11828613 is an apocalyptic number.

It is an amenable number.

11828613 is a deficient number, since it is larger than the sum of its proper divisors (3942875).

11828613 is an equidigital number, since it uses as much as digits as its factorization.

11828613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942874.

The product of its digits is 2304, while the sum is 30.

The square root of 11828613 is about 3439.2750689644. The cubic root of 11828613 is about 227.8476783462.

The spelling of 11828613 in words is "eleven million, eight hundred twenty-eight thousand, six hundred thirteen".