108291983 has 2 divisors, whose sum is σ = 108291984. Its totient is φ = 108291982.

The previous prime is 108291979. The next prime is 108292087. The reversal of 108291983 is 389192801.

It is a weak prime.

It is an emirp because it is prime and its reverse (389192801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108291983 - 2² = 108291979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108291983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108291913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54145991 + 54145992.

It is an arithmetic number, because the mean of its divisors is an integer number (54145992).

Almost surely, 2^108291983 is an apocalyptic number.

108291983 is a deficient number, since it is larger than the sum of its proper divisors (1).

108291983 is an equidigital number, since it uses as much as digits as its factorization.

108291983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 108291983 is about 10406.3434019832. The cubic root of 108291983 is about 476.6490906414.

The spelling of 108291983 in words is "one hundred eight million, two hundred ninety-one thousand, nine hundred eighty-three".