8761899487 has 4 divisors (see below), whose sum is σ = 9558435816. Its totient is φ = 7965363160.

The previous prime is 8761899481. The next prime is 8761899493. The reversal of 8761899487 is 7849981678.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (8761899481) and next prime (8761899493).

It is a cyclic number.

It is not a de Polignac number, because 8761899487 - 2³ = 8761899479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8761899481) 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, 398268148 + ... + 398268169.

It is an arithmetic number, because the mean of its divisors is an integer number (2389608954).

Almost surely, 2^8761899487 is an apocalyptic number.

8761899487 is a deficient number, since it is larger than the sum of its proper divisors (796536329).

8761899487 is a wasteful number, since it uses less digits than its factorization.

8761899487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796536328.

The product of its digits is 48771072, while the sum is 67.

The square root of 8761899487 is about 93605.0184926001. The cubic root of 8761899487 is about 2061.5763445059.

The spelling of 8761899487 in words is "eight billion, seven hundred sixty-one million, eight hundred ninety-nine thousand, four hundred eighty-seven".