8885557 has 2 divisors, whose sum is σ = 8885558. Its totient is φ = 8885556.

The previous prime is 8885551. The next prime is 8885573. The reversal of 8885557 is 7555888.

8885557 is digitally balanced in base 2 and base 3, because in such bases 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., 8259876 + 625681 = 2874^2 + 791^2 .

It is a cyclic number.

It is not a de Polignac number, because 8885557 - 2²³ = 496949 is a prime.

8885557 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8885551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4442778 + 4442779.

It is an arithmetic number, because the mean of its divisors is an integer number (4442779).

Almost surely, 2^8885557 is an apocalyptic number.

It is an amenable number.

8885557 is a deficient number, since it is larger than the sum of its proper divisors (1).

8885557 is an equidigital number, since it uses as much as digits as its factorization.

8885557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448000, while the sum is 46.

The square root of 8885557 is about 2980.8651428738. The cubic root of 8885557 is about 207.1229481120.

The spelling of 8885557 in words is "eight million, eight hundred eighty-five thousand, five hundred fifty-seven".