21470483 has 2 divisors, whose sum is σ = 21470484. Its totient is φ = 21470482.

The previous prime is 21470467. The next prime is 21470489. The reversal of 21470483 is 38407412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21470483 - 2⁴ = 21470467 is a prime.

It is not a weakly prime, because it can be changed into another prime (21470489) 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 as a sum of consecutive naturals, namely, 10735241 + 10735242.

It is an arithmetic number, because the mean of its divisors is an integer number (10735242).

Almost surely, 2^21470483 is an apocalyptic number.

21470483 is a deficient number, since it is larger than the sum of its proper divisors (1).

21470483 is an equidigital number, since it uses as much as digits as its factorization.

21470483 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 21470483 is about 4633.6252545928. The cubic root of 21470483 is about 277.9375797955.

Adding to 21470483 its reverse (38407412), we get a palindrome (59877895).

The spelling of 21470483 in words is "twenty-one million, four hundred seventy thousand, four hundred eighty-three".