8020247 has 2 divisors, whose sum is σ = 8020248. Its totient is φ = 8020246.

The previous prime is 8020241. The next prime is 8020249. The reversal of 8020247 is 7420208.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8020247 - 2⁶ = 8020183 is a prime.

Together with 8020249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8020241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4010123 + 4010124.

It is an arithmetic number, because the mean of its divisors is an integer number (4010124).

Almost surely, 2^8020247 is an apocalyptic number.

8020247 is a deficient number, since it is larger than the sum of its proper divisors (1).

8020247 is an equidigital number, since it uses as much as digits as its factorization.

8020247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 8020247 is about 2832.0040607316. The cubic root of 8020247 is about 200.1685828592.

Subtracting from 8020247 its sum of digits (23), we obtain a square (8020224 = 2832²).

The spelling of 8020247 in words is "eight million, twenty thousand, two hundred forty-seven".