7994647 has 2 divisors, whose sum is σ = 7994648. Its totient is φ = 7994646.

The previous prime is 7994617. The next prime is 7994659. The reversal of 7994647 is 7464997.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7994647 - 2¹⁵ = 7961879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7994597 and 7994606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7994617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3997323 + 3997324.

It is an arithmetic number, because the mean of its divisors is an integer number (3997324).

Almost surely, 2^7994647 is an apocalyptic number.

7994647 is a deficient number, since it is larger than the sum of its proper divisors (1).

7994647 is an equidigital number, since it uses as much as digits as its factorization.

7994647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 46.

The square root of 7994647 is about 2827.4806807474. The cubic root of 7994647 is about 199.9553817134.

The spelling of 7994647 in words is "seven million, nine hundred ninety-four thousand, six hundred forty-seven".