89998387 has 2 divisors, whose sum is σ = 89998388. Its totient is φ = 89998386.

The previous prime is 89998369. The next prime is 89998411. The reversal of 89998387 is 78389998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89998387 - 2¹¹ = 89996339 is a prime.

It is not a weakly prime, because it can be changed into another prime (89992387) 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, 44999193 + 44999194.

It is an arithmetic number, because the mean of its divisors is an integer number (44999194).

Almost surely, 2^89998387 is an apocalyptic number.

89998387 is a deficient number, since it is larger than the sum of its proper divisors (1).

89998387 is an equidigital number, since it uses as much as digits as its factorization.

89998387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 61.

The square root of 89998387 is about 9486.7479675598. The cubic root of 89998387 is about 448.1377974153.

The spelling of 89998387 in words is "eighty-nine million, nine hundred ninety-eight thousand, three hundred eighty-seven".