108405587 has 2 divisors, whose sum is σ = 108405588. Its totient is φ = 108405586.

The previous prime is 108405571. The next prime is 108405589. The reversal of 108405587 is 785504801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108405587 - 2⁴ = 108405571 is a prime.

Together with 108405589, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108405587.

It is not a weakly prime, because it can be changed into another prime (108405589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54202793 + 54202794.

It is an arithmetic number, because the mean of its divisors is an integer number (54202794).

Almost surely, 2^108405587 is an apocalyptic number.

108405587 is a deficient number, since it is larger than the sum of its proper divisors (1).

108405587 is an equidigital number, since it uses as much as digits as its factorization.

108405587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 108405587 is about 10411.8003726541. The cubic root of 108405587 is about 476.8157090671.

The spelling of 108405587 in words is "one hundred eight million, four hundred five thousand, five hundred eighty-seven".