896555321 has 2 divisors, whose sum is σ = 896555322. Its totient is φ = 896555320.

The previous prime is 896555311. The next prime is 896555353. The reversal of 896555321 is 123555698.

896555321 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., 896343721 + 211600 = 29939^2 + 460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-896555321 is a prime.

It is a super-2 number, since 2×896555321² = 1607622887226826082, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (896555311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448277660 + 448277661.

It is an arithmetic number, because the mean of its divisors is an integer number (448277661).

Almost surely, 2^896555321 is an apocalyptic number.

It is an amenable number.

896555321 is a deficient number, since it is larger than the sum of its proper divisors (1).

896555321 is an equidigital number, since it uses as much as digits as its factorization.

896555321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 44.

The square root of 896555321 is about 29942.5336436314. The cubic root of 896555321 is about 964.2560315932.

The spelling of 896555321 in words is "eight hundred ninety-six million, five hundred fifty-five thousand, three hundred twenty-one".