108021671 has 2 divisors, whose sum is σ = 108021672. Its totient is φ = 108021670.

The previous prime is 108021653. The next prime is 108021673. The reversal of 108021671 is 176120801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108021671 is a prime.

Together with 108021673, 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 108021671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108021673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54010835 + 54010836.

It is an arithmetic number, because the mean of its divisors is an integer number (54010836).

Almost surely, 2^108021671 is an apocalyptic number.

108021671 is a deficient number, since it is larger than the sum of its proper divisors (1).

108021671 is an equidigital number, since it uses as much as digits as its factorization.

108021671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 108021671 is about 10393.3474395885. The cubic root of 108021671 is about 476.2521658382.

The spelling of 108021671 in words is "one hundred eight million, twenty-one thousand, six hundred seventy-one".