88406321 has 2 divisors, whose sum is σ = 88406322. Its totient is φ = 88406320.

The previous prime is 88406317. The next prime is 88406359. The reversal of 88406321 is 12360488.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57214096 + 31192225 = 7564^2 + 5585^2 .

It is a cyclic number.

It is not a de Polignac number, because 88406321 - 2² = 88406317 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88406821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44203160 + 44203161.

It is an arithmetic number, because the mean of its divisors is an integer number (44203161).

Almost surely, 2^88406321 is an apocalyptic number.

It is an amenable number.

88406321 is a deficient number, since it is larger than the sum of its proper divisors (1).

88406321 is an equidigital number, since it uses as much as digits as its factorization.

88406321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 88406321 is about 9402.4635601527. The cubic root of 88406321 is about 445.4795503627.

The spelling of 88406321 in words is "eighty-eight million, four hundred six thousand, three hundred twenty-one".