8397887938 has 32 divisors (see below), whose sum is σ = 14600528640. Its totient is φ = 3582498960.

The previous prime is 8397887933. The next prime is 8397887963.

8397887938 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (8397887933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49156 + ... + 138607.

It is an arithmetic number, because the mean of its divisors is an integer number (456266520).

Almost surely, 2^8397887938 is an apocalyptic number.

8397887938 is a deficient number, since it is larger than the sum of its proper divisors (6202640702).

8397887938 is a wasteful number, since it uses less digits than its factorization.

8397887938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187902.

The product of its digits is 146313216, while the sum is 70.

The square root of 8397887938 is about 91639.9909319070. The cubic root of 8397887938 is about 2032.6223269578.

The spelling of 8397887938 in words is "eight billion, three hundred ninety-seven million, eight hundred eighty-seven thousand, nine hundred thirty-eight".