12612421 has 8 divisors (see below), whose sum is σ = 12896000. Its totient is φ = 12331440.

The previous prime is 12612407. The next prime is 12612433. The reversal of 12612421 is 12421621.

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 12612421 - 2¹¹ = 12610373 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 (12612491) 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, 11620 + ... + 12658.

It is an arithmetic number, because the mean of its divisors is an integer number (1612000).

Almost surely, 2^12612421 is an apocalyptic number.

It is an amenable number.

12612421 is a deficient number, since it is larger than the sum of its proper divisors (283579).

12612421 is a wasteful number, since it uses less digits than its factorization.

12612421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299.

The product of its digits is 192, while the sum is 19.

The square root of 12612421 is about 3551.3970490499. The cubic root of 12612421 is about 232.7731156686.

The spelling of 12612421 in words is "twelve million, six hundred twelve thousand, four hundred twenty-one".