7893947516 has 24 divisors (see below), whose sum is σ = 17002349280. Its totient is φ = 3122880192.

The previous prime is 7893947513. The next prime is 7893947527. The reversal of 7893947516 is 6157493987.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7893947513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10842971 + ... + 10843698.

It is an arithmetic number, because the mean of its divisors is an integer number (708431220).

Almost surely, 2^7893947516 is an apocalyptic number.

It is an amenable number.

7893947516 is an abundant number, since it is smaller than the sum of its proper divisors (9108401764).

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

7893947516 is a wasteful number, since it uses less digits than its factorization.

7893947516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21686693 (or 21686691 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 59.

The square root of 7893947516 is about 88847.8897667243. The cubic root of 7893947516 is about 1991.1229502883.

The spelling of 7893947516 in words is "seven billion, eight hundred ninety-three million, nine hundred forty-seven thousand, five hundred sixteen".