12421885 has 8 divisors (see below), whose sum is σ = 17035776. Its totient is φ = 8517840.

The previous prime is 12421873. The next prime is 12421891. The reversal of 12421885 is 58812421.

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

It is not a de Polignac number, because 12421885 - 2⁵ = 12421853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177421 + ... + 177490.

It is an arithmetic number, because the mean of its divisors is an integer number (2129472).

Almost surely, 2^12421885 is an apocalyptic number.

It is an amenable number.

12421885 is a deficient number, since it is larger than the sum of its proper divisors (4613891).

12421885 is an equidigital number, since it uses as much as digits as its factorization.

12421885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354923.

The product of its digits is 5120, while the sum is 31.

The square root of 12421885 is about 3524.4694636214. The cubic root of 12421885 is about 231.5949941894.

The spelling of 12421885 in words is "twelve million, four hundred twenty-one thousand, eight hundred eighty-five".