21484607 has 2 divisors, whose sum is σ = 21484608. Its totient is φ = 21484606.

The previous prime is 21484591. The next prime is 21484669. The reversal of 21484607 is 70648412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21484607 - 2⁴ = 21484591 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21484807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10742303 + 10742304.

It is an arithmetic number, because the mean of its divisors is an integer number (10742304).

Almost surely, 2^21484607 is an apocalyptic number.

21484607 is a deficient number, since it is larger than the sum of its proper divisors (1).

21484607 is an equidigital number, since it uses as much as digits as its factorization.

21484607 is an odious number, because the sum of its binary digits is odd.

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

The square root of 21484607 is about 4635.1490806661. The cubic root of 21484607 is about 277.9985119738.

The spelling of 21484607 in words is "twenty-one million, four hundred eighty-four thousand, six hundred seven".