7828747 has 2 divisors, whose sum is σ = 7828748. Its totient is φ = 7828746.

The previous prime is 7828729. The next prime is 7828781. The reversal of 7828747 is 7478287.

7828747 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (7478287) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7828747 - 2¹¹ = 7826699 is a prime.

It is a super-2 number, since 2×7828747² = 122578559180018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7828147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3914373 + 3914374.

It is an arithmetic number, because the mean of its divisors is an integer number (3914374).

Almost surely, 2^7828747 is an apocalyptic number.

7828747 is a deficient number, since it is larger than the sum of its proper divisors (1).

7828747 is an equidigital number, since it uses as much as digits as its factorization.

7828747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 175616, while the sum is 43.

The square root of 7828747 is about 2797.9898141344. The cubic root of 7828747 is about 198.5625856155.

The spelling of 7828747 in words is "seven million, eight hundred twenty-eight thousand, seven hundred forty-seven".