108662987 has 2 divisors, whose sum is σ = 108662988. Its totient is φ = 108662986.

The previous prime is 108662959. The next prime is 108662993. The reversal of 108662987 is 789266801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108662987 - 2²⁰ = 107614411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108662927) 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, 54331493 + 54331494.

It is an arithmetic number, because the mean of its divisors is an integer number (54331494).

Almost surely, 2^108662987 is an apocalyptic number.

108662987 is a deficient number, since it is larger than the sum of its proper divisors (1).

108662987 is an equidigital number, since it uses as much as digits as its factorization.

108662987 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 47.

The square root of 108662987 is about 10424.1540184324. The cubic root of 108662987 is about 477.1927971109.

The spelling of 108662987 in words is "one hundred eight million, six hundred sixty-two thousand, nine hundred eighty-seven".