21484627 has 8 divisors (see below), whose sum is σ = 22068032. Its totient is φ = 20908800.

The previous prime is 21484607. The next prime is 21484669. The reversal of 21484627 is 72648412.

It is a happy number.

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 21484627 - 2¹⁹ = 20960339 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 21484592 and 21484601.

It is not an unprimeable number, because it can be changed into a prime (21484607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4102 + ... + 7732.

It is an arithmetic number, because the mean of its divisors is an integer number (2758504).

Almost surely, 2^21484627 is an apocalyptic number.

21484627 is a deficient number, since it is larger than the sum of its proper divisors (583405).

21484627 is an equidigital number, since it uses as much as digits as its factorization.

21484627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789.

The product of its digits is 21504, while the sum is 34.

The square root of 21484627 is about 4635.1512380935. The cubic root of 21484627 is about 277.9985982366.

The spelling of 21484627 in words is "twenty-one million, four hundred eighty-four thousand, six hundred twenty-seven".