11876221 has 8 divisors (see below), whose sum is σ = 13737024. Its totient is φ = 10056480.

The previous prime is 11876203. The next prime is 11876231. The reversal of 11876221 is 12267811.

11876221 = T₁₀₅₃ + T₁₀₅₄ + ... + T₁₀₇₃.

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

It is not a de Polignac number, because 11876221 - 2⁷ = 11876093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11876221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11876201) 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, 9640 + ... + 10801.

It is an arithmetic number, because the mean of its divisors is an integer number (1717128).

Almost surely, 2^11876221 is an apocalyptic number.

It is an amenable number.

11876221 is a deficient number, since it is larger than the sum of its proper divisors (1860803).

11876221 is an equidigital number, since it uses as much as digits as its factorization.

11876221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20531.

The product of its digits is 1344, while the sum is 28.

The square root of 11876221 is about 3446.1893447691. The cubic root of 11876221 is about 228.1529508756.

The spelling of 11876221 in words is "eleven million, eight hundred seventy-six thousand, two hundred twenty-one".