108003997 has 2 divisors, whose sum is σ = 108003998. Its totient is φ = 108003996.

The previous prime is 108003953. The next prime is 108004019. The reversal of 108003997 is 799300801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105144516 + 2859481 = 10254^2 + 1691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108003997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108003947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54001998 + 54001999.

It is an arithmetic number, because the mean of its divisors is an integer number (54001999).

Almost surely, 2^108003997 is an apocalyptic number.

It is an amenable number.

108003997 is a deficient number, since it is larger than the sum of its proper divisors (1).

108003997 is an equidigital number, since it uses as much as digits as its factorization.

108003997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 108003997 is about 10392.4971493862. The cubic root of 108003997 is about 476.2261903717.

The spelling of 108003997 in words is "one hundred eight million, three thousand, nine hundred ninety-seven".