1020799 has 16 divisors (see below), whose sum is σ = 1209600. Its totient is φ = 852480.

The previous prime is 1020797. The next prime is 1020821. The reversal of 1020799 is 9970201.

It is a cyclic number.

It is not a de Polignac number, because 1020799 - 2¹ = 1020797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6777 + ... + 6925.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^1020799 is an apocalyptic number.

1020799 is a deficient number, since it is larger than the sum of its proper divisors (188801).

1020799 is a wasteful number, since it uses less digits than its factorization.

1020799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 1020799 is about 1010.3459803453. The cubic root of 1020799 is about 100.6885481334.

The spelling of 1020799 in words is "one million, twenty thousand, seven hundred ninety-nine".