8478553 has 2 divisors, whose sum is σ = 8478554. Its totient is φ = 8478552.

The previous prime is 8478551. The next prime is 8478571. The reversal of 8478553 is 3558748.

8478553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8020224 + 458329 = 2832^2 + 677^2 .

It is a cyclic number.

It is not a de Polignac number, because 8478553 - 2¹ = 8478551 is a prime.

Together with 8478551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8478551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239276 + 4239277.

It is an arithmetic number, because the mean of its divisors is an integer number (4239277).

Almost surely, 2^8478553 is an apocalyptic number.

It is an amenable number.

8478553 is a deficient number, since it is larger than the sum of its proper divisors (1).

8478553 is an equidigital number, since it uses as much as digits as its factorization.

8478553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 40.

The square root of 8478553 is about 2911.7954941925. The cubic root of 8478553 is about 203.9109649272.

The spelling of 8478553 in words is "eight million, four hundred seventy-eight thousand, five hundred fifty-three".