1988382017 has 4 divisors (see below), whose sum is σ = 1989481776. Its totient is φ = 1987282260.

The previous prime is 1988382001. The next prime is 1988382029. The reversal of 1988382017 is 7102838891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7102838891 = 29 ⋅244925479.

It is a cyclic number.

It is not a de Polignac number, because 1988382017 - 2⁴ = 1988382001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1988382037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547163 + ... + 550784.

It is an arithmetic number, because the mean of its divisors is an integer number (497370444).

Almost surely, 2^1988382017 is an apocalyptic number.

It is an amenable number.

1988382017 is a deficient number, since it is larger than the sum of its proper divisors (1099759).

1988382017 is a wasteful number, since it uses less digits than its factorization.

1988382017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099758.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 1988382017 is about 44591.2773645250. The cubic root of 1988382017 is about 1257.4766871165.

The spelling of 1988382017 in words is "one billion, nine hundred eighty-eight million, three hundred eighty-two thousand, seventeen".