7684930865 has 4 divisors (see below), whose sum is σ = 9221917044. Its totient is φ = 6147944688.

The previous prime is 7684930861. The next prime is 7684930879. The reversal of 7684930865 is 5680394867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5680394867 = 7 ⋅811484981.

It can be written as a sum of positive squares in 2 ways, for example, as 3718072576 + 3966858289 = 60976^2 + 62983^2 .

It is a cyclic number.

It is not a de Polignac number, because 7684930865 - 2² = 7684930861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7684930865.

It is not an unprimeable number, because it can be changed into a prime (7684930861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 768493082 + ... + 768493091.

It is an arithmetic number, because the mean of its divisors is an integer number (2305479261).

Almost surely, 2^7684930865 is an apocalyptic number.

It is an amenable number.

7684930865 is a deficient number, since it is larger than the sum of its proper divisors (1536986179).

7684930865 is a wasteful number, since it uses less digits than its factorization.

7684930865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536986178.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The square root of 7684930865 is about 87663.7374574003. The cubic root of 7684930865 is about 1973.3918107563.

The spelling of 7684930865 in words is "seven billion, six hundred eighty-four million, nine hundred thirty thousand, eight hundred sixty-five".