8387459816 has 16 divisors (see below), whose sum is σ = 15760607940. Its totient is φ = 4184631040.

The previous prime is 8387459803. The next prime is 8387459819. The reversal of 8387459816 is 6189547838.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8290830916 + 96628900 = 91054^2 + 9830^2 .

It is not an unprimeable number, because it can be changed into a prime (8387459819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1133441 + ... + 1140816.

Almost surely, 2^8387459816 is an apocalyptic number.

It is an amenable number.

8387459816 is a deficient number, since it is larger than the sum of its proper divisors (7373148124).

8387459816 is a wasteful number, since it uses less digits than its factorization.

8387459816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274724 (or 2274720 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 59.

The square root of 8387459816 is about 91583.0760348221. The cubic root of 8387459816 is about 2031.7806386105.

The spelling of 8387459816 in words is "eight billion, three hundred eighty-seven million, four hundred fifty-nine thousand, eight hundred sixteen".