8749813684 has 6 divisors (see below), whose sum is σ = 15312173954. Its totient is φ = 4374906840.

The previous prime is 8749813679. The next prime is 8749813729. The reversal of 8749813684 is 4863189478.

It can be written as a sum of positive squares in only one way, i.e., 8386530084 + 363283600 = 91578^2 + 19060^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1093726707 + ... + 1093726714.

Almost surely, 2^8749813684 is an apocalyptic number.

It is an amenable number.

8749813684 is a deficient number, since it is larger than the sum of its proper divisors (6562360270).

8749813684 is a wasteful number, since it uses less digits than its factorization.

8749813684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187453425 (or 2187453423 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 58.

The square root of 8749813684 is about 93540.4387631360. The cubic root of 8749813684 is about 2060.6280238692.

The spelling of 8749813684 in words is "eight billion, seven hundred forty-nine million, eight hundred thirteen thousand, six hundred eighty-four".