98788091 has 2 divisors, whose sum is σ = 98788092. Its totient is φ = 98788090.

The previous prime is 98788033. The next prime is 98788153. The reversal of 98788091 is 19088789.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98788091 - 2¹⁴ = 98771707 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98788891) 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, 49394045 + 49394046.

It is an arithmetic number, because the mean of its divisors is an integer number (49394046).

Almost surely, 2^98788091 is an apocalyptic number.

98788091 is a deficient number, since it is larger than the sum of its proper divisors (1).

98788091 is an equidigital number, since it uses as much as digits as its factorization.

98788091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 50.

The square root of 98788091 is about 9939.2198385990. The cubic root of 98788091 is about 462.2761961746.

The spelling of 98788091 in words is "ninety-eight million, seven hundred eighty-eight thousand, ninety-one".