8485710421 has 2 divisors, whose sum is σ = 8485710422. Its totient is φ = 8485710420.

The previous prime is 8485710419. The next prime is 8485710437. The reversal of 8485710421 is 1240175848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8333681521 + 152028900 = 91289^2 + 12330^2 .

It is a cyclic number.

It is not a de Polignac number, because 8485710421 - 2¹ = 8485710419 is a prime.

Together with 8485710419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8485710461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4242855210 + 4242855211.

It is an arithmetic number, because the mean of its divisors is an integer number (4242855211).

Almost surely, 2^8485710421 is an apocalyptic number.

It is an amenable number.

8485710421 is a deficient number, since it is larger than the sum of its proper divisors (1).

8485710421 is an equidigital number, since it uses as much as digits as its factorization.

8485710421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 8485710421 is about 92117.9158524551. The cubic root of 8485710421 is about 2039.6832794376.

The spelling of 8485710421 in words is "eight billion, four hundred eighty-five million, seven hundred ten thousand, four hundred twenty-one".