88982221 has 2 divisors, whose sum is σ = 88982222. Its totient is φ = 88982220.

The previous prime is 88982219. The next prime is 88982249. The reversal of 88982221 is 12228988.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81198121 + 7784100 = 9011^2 + 2790^2 .

It is a cyclic number.

It is not a de Polignac number, because 88982221 - 2¹ = 88982219 is a prime.

Together with 88982219, 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 (88982281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44491110 + 44491111.

It is an arithmetic number, because the mean of its divisors is an integer number (44491111).

Almost surely, 2^88982221 is an apocalyptic number.

It is an amenable number.

88982221 is a deficient number, since it is larger than the sum of its proper divisors (1).

88982221 is an equidigital number, since it uses as much as digits as its factorization.

88982221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 40.

The square root of 88982221 is about 9433.0387998778. The cubic root of 88982221 is about 446.4447777273. Note that the first 3 decimals are identical.

The spelling of 88982221 in words is "eighty-eight million, nine hundred eighty-two thousand, two hundred twenty-one".