1020847 has 2 divisors, whose sum is σ = 1020848. Its totient is φ = 1020846.

The previous prime is 1020841. The next prime is 1020853. The reversal of 1020847 is 7480201.

It is a balanced prime because it is at equal distance from previous prime (1020841) and next prime (1020853).

It is a cyclic number.

It is not a de Polignac number, because 1020847 - 2³ = 1020839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510423 + 510424.

It is an arithmetic number, because the mean of its divisors is an integer number (510424).

2^1020847 is an apocalyptic number.

1020847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020847 is an equidigital number, since it uses as much as digits as its factorization.

1020847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1020847 is about 1010.3697343052. The cubic root of 1020847 is about 100.6901263006.

The spelling of 1020847 in words is "one million, twenty thousand, eight hundred forty-seven".