28421627 has 8 divisors (see below), whose sum is σ = 30690576. Its totient is φ = 26164512.

The previous prime is 28421623. The next prime is 28421633. The reversal of 28421627 is 72612482.

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 28421627 - 2² = 28421623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28421593 and 28421602.

It is not an unprimeable number, because it can be changed into a prime (28421623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2408 + ... + 7914.

It is an arithmetic number, because the mean of its divisors is an integer number (3836322).

Almost surely, 2^28421627 is an apocalyptic number.

28421627 is a deficient number, since it is larger than the sum of its proper divisors (2268949).

28421627 is a wasteful number, since it uses less digits than its factorization.

28421627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5917.

The product of its digits is 10752, while the sum is 32.

The square root of 28421627 is about 5331.1937687539. The cubic root of 28421627 is about 305.1754862198.

The spelling of 28421627 in words is "twenty-eight million, four hundred twenty-one thousand, six hundred twenty-seven".