88939999 has 2 divisors, whose sum is σ = 88940000. Its totient is φ = 88939998.

The previous prime is 88939993. The next prime is 88940003. The reversal of 88939999 is 99993988.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88939999 - 2⁷ = 88939871 is a prime.

88939999 is a modest number, since divided by 9999 gives 8893 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 88939999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88939993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44469999 + 44470000.

It is an arithmetic number, because the mean of its divisors is an integer number (44470000).

Almost surely, 2^88939999 is an apocalyptic number.

88939999 is a deficient number, since it is larger than the sum of its proper divisors (1).

88939999 is an equidigital number, since it uses as much as digits as its factorization.

88939999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11337408, while the sum is 64.

The square root of 88939999 is about 9430.8005492641. The cubic root of 88939999 is about 446.3741539802.

The spelling of 88939999 in words is "eighty-eight million, nine hundred thirty-nine thousand, nine hundred ninety-nine".