7986474647 has 2 divisors, whose sum is σ = 7986474648. Its totient is φ = 7986474646.

The previous prime is 7986474641. The next prime is 7986474673. The reversal of 7986474647 is 7464746897.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7986474647 - 2²⁴ = 7969697431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7986474647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7986474641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3993237323 + 3993237324.

It is an arithmetic number, because the mean of its divisors is an integer number (3993237324).

Almost surely, 2^7986474647 is an apocalyptic number.

7986474647 is a deficient number, since it is larger than the sum of its proper divisors (1).

7986474647 is an equidigital number, since it uses as much as digits as its factorization.

7986474647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56899584, while the sum is 62.

The square root of 7986474647 is about 89367.0780936694. The cubic root of 7986474647 is about 1998.8722514611.

The spelling of 7986474647 in words is "seven billion, nine hundred eighty-six million, four hundred seventy-four thousand, six hundred forty-seven".