11984021 has 8 divisors (see below), whose sum is σ = 13928640. Its totient is φ = 10097568.

The previous prime is 11984017. The next prime is 11984023. The reversal of 11984021 is 12048911.

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

It is a cyclic number.

It is not a de Polignac number, because 11984021 - 2² = 11984017 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 (11984023) 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, 14096 + ... + 14921.

It is an arithmetic number, because the mean of its divisors is an integer number (1741080).

Almost surely, 2^11984021 is an apocalyptic number.

It is an amenable number.

11984021 is a deficient number, since it is larger than the sum of its proper divisors (1944619).

11984021 is an equidigital number, since it uses as much as digits as its factorization.

11984021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29083.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 11984021 is about 3461.7944768573. The cubic root of 11984021 is about 228.8411845455.

The spelling of 11984021 in words is "eleven million, nine hundred eighty-four thousand, twenty-one".