88888321 has 2 divisors, whose sum is σ = 88888322. Its totient is φ = 88888320.

The previous prime is 88888309. The next prime is 88888337. The reversal of 88888321 is 12388888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79210000 + 9678321 = 8900^2 + 3111^2 .

It is a cyclic number.

It is not a de Polignac number, because 88888321 - 2⁹ = 88887809 is a prime.

It is a super-2 number, since 2×88888321² = 15802267220398082, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (88888361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44444160 + 44444161.

It is an arithmetic number, because the mean of its divisors is an integer number (44444161).

Almost surely, 2^88888321 is an apocalyptic number.

It is an amenable number.

88888321 is a deficient number, since it is larger than the sum of its proper divisors (1).

88888321 is an equidigital number, since it uses as much as digits as its factorization.

88888321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 196608, while the sum is 46.

The square root of 88888321 is about 9428.0602989162. The cubic root of 88888321 is about 446.2876829773.

The spelling of 88888321 in words is "eighty-eight million, eight hundred eighty-eight thousand, three hundred twenty-one".