108494987 has 2 divisors, whose sum is σ = 108494988. Its totient is φ = 108494986.

The previous prime is 108494917. The next prime is 108494993. The reversal of 108494987 is 789494801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108494987 - 2¹⁰ = 108493963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108494917) 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, 54247493 + 54247494.

It is an arithmetic number, because the mean of its divisors is an integer number (54247494).

Almost surely, 2^108494987 is an apocalyptic number.

108494987 is a deficient number, since it is larger than the sum of its proper divisors (1).

108494987 is an equidigital number, since it uses as much as digits as its factorization.

108494987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 108494987 is about 10416.0926935200. The cubic root of 108494987 is about 476.9467466300.

The spelling of 108494987 in words is "one hundred eight million, four hundred ninety-four thousand, nine hundred eighty-seven".