11874821 has 8 divisors (see below), whose sum is σ = 13762944. Its totient is φ = 10034640.

The previous prime is 11874799. The next prime is 11874847. The reversal of 11874821 is 12847811.

11874821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11874821 is a prime.

It is a super-2 number, since 2×11874821² = 282022747564082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11874851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11450 + ... + 12443.

It is an arithmetic number, because the mean of its divisors is an integer number (1720368).

Almost surely, 2^11874821 is an apocalyptic number.

It is an amenable number.

11874821 is a deficient number, since it is larger than the sum of its proper divisors (1888123).

11874821 is an equidigital number, since it uses as much as digits as its factorization.

11874821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23971.

The product of its digits is 3584, while the sum is 32.

The square root of 11874821 is about 3445.9862158749. The cubic root of 11874821 is about 228.1439854344.

The spelling of 11874821 in words is "eleven million, eight hundred seventy-four thousand, eight hundred twenty-one".