98108987 has 2 divisors, whose sum is σ = 98108988. Its totient is φ = 98108986.

The previous prime is 98108977. The next prime is 98109031. The reversal of 98108987 is 78980189.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98108987 - 2¹² = 98104891 is a prime.

It is not a weakly prime, because it can be changed into another prime (98108947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49054493 + 49054494.

It is an arithmetic number, because the mean of its divisors is an integer number (49054494).

Almost surely, 2^98108987 is an apocalyptic number.

98108987 is a deficient number, since it is larger than the sum of its proper divisors (1).

98108987 is an equidigital number, since it uses as much as digits as its factorization.

98108987 is an evil number, because the sum of its binary digits is even.

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

The square root of 98108987 is about 9904.9980817767. The cubic root of 98108987 is about 461.2144766428.

The spelling of 98108987 in words is "ninety-eight million, one hundred eight thousand, nine hundred eighty-seven".