108390587 has 2 divisors, whose sum is σ = 108390588. Its totient is φ = 108390586.

The previous prime is 108390577. The next prime is 108390631. The reversal of 108390587 is 785093801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108390587 is a prime.

It is not a weakly prime, because it can be changed into another prime (108390577) 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, 54195293 + 54195294.

It is an arithmetic number, because the mean of its divisors is an integer number (54195294).

Almost surely, 2^108390587 is an apocalyptic number.

108390587 is a deficient number, since it is larger than the sum of its proper divisors (1).

108390587 is an equidigital number, since it uses as much as digits as its factorization.

108390587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 108390587 is about 10411.0800112188. The cubic root of 108390587 is about 476.7937158417.

The spelling of 108390587 in words is "one hundred eight million, three hundred ninety thousand, five hundred eighty-seven".