12675421 has 8 divisors (see below), whose sum is σ = 14641344. Its totient is φ = 10845120.

The previous prime is 12675401. The next prime is 12675431. The reversal of 12675421 is 12457621.

12675421 = 594² + 595² + ... + 627².

12675421 is digitally balanced in base 2, 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 not a de Polignac number, because 12675421 - 2⁷ = 12675293 is a prime.

It is a super-4 number, since 4×12675421⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12675421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12675401) 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, 33705 + ... + 34078.

It is an arithmetic number, because the mean of its divisors is an integer number (1830168).

Almost surely, 2^12675421 is an apocalyptic number.

12675421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12675421 is a deficient number, since it is larger than the sum of its proper divisors (1965923).

12675421 is a wasteful number, since it uses less digits than its factorization.

12675421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67811.

The product of its digits is 3360, while the sum is 28.

The square root of 12675421 is about 3560.2557492405. The cubic root of 12675421 is about 233.1600452601.

The spelling of 12675421 in words is "twelve million, six hundred seventy-five thousand, four hundred twenty-one".