7687345747 has 4 divisors (see below), whose sum is σ = 7687798776. Its totient is φ = 7686892720.

The previous prime is 7687345703. The next prime is 7687345759. The reversal of 7687345747 is 7475437867.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7687345747 - 2²⁷ = 7553128019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7687345691 and 7687345700.

It is not an unprimeable number, because it can be changed into a prime (7687345247) 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, 200029 + ... + 235342.

It is an arithmetic number, because the mean of its divisors is an integer number (1921949694).

Almost surely, 2^7687345747 is an apocalyptic number.

7687345747 is a deficient number, since it is larger than the sum of its proper divisors (453029).

7687345747 is a wasteful number, since it uses less digits than its factorization.

7687345747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453028.

The product of its digits is 27659520, while the sum is 58.

The square root of 7687345747 is about 87677.5099270047. The cubic root of 7687345747 is about 1973.5984926974.

The spelling of 7687345747 in words is "seven billion, six hundred eighty-seven million, three hundred forty-five thousand, seven hundred forty-seven".