1020798 has 12 divisors (see below), whose sum is σ = 2211768. Its totient is φ = 340260.

The previous prime is 1020797. The next prime is 1020821. The reversal of 1020798 is 8970201.

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 5 ways as a sum of consecutive naturals, for example, 28338 + ... + 28373.

It is an arithmetic number, because the mean of its divisors is an integer number (184314).

2^1020798 is an apocalyptic number.

1020798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1020798 is an abundant number, since it is smaller than the sum of its proper divisors (1190970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020798 is a wasteful number, since it uses less digits than its factorization.

1020798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56719 (or 56716 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1020798 is about 1010.3454854652. The cubic root of 1020798 is about 100.6885152543.

Adding to 1020798 its reverse (8970201), we get a palindrome (9990999).

The spelling of 1020798 in words is "one million, twenty thousand, seven hundred ninety-eight".