8006347640 has 16 divisors (see below), whose sum is σ = 18014282280. Its totient is φ = 3202539040.

The previous prime is 8006347619. The next prime is 8006347663. The reversal of 8006347640 is 467436008.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8006347594 and 8006347603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100079306 + ... + 100079385.

Almost surely, 2^8006347640 is an apocalyptic number.

It is an amenable number.

8006347640 is an abundant number, since it is smaller than the sum of its proper divisors (10007934640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8006347640 is a wasteful number, since it uses less digits than its factorization.

8006347640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200158702 (or 200158698 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 8006347640 is about 89478.1964503085. The cubic root of 8006347640 is about 2000.5288301570.

The spelling of 8006347640 in words is "eight billion, six million, three hundred forty-seven thousand, six hundred forty".