820898502 has 16 divisors (see below), whose sum is σ = 1686170352. Its totient is φ = 266237280.

The previous prime is 820898501. The next prime is 820898581. The reversal of 820898502 is 205898028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820898501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1848649 + ... + 1849092.

It is an arithmetic number, because the mean of its divisors is an integer number (105385647).

Almost surely, 2^820898502 is an apocalyptic number.

820898502 is an abundant number, since it is smaller than the sum of its proper divisors (865271850).

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

820898502 is a wasteful number, since it uses less digits than its factorization.

820898502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3697783.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 820898502 is about 28651.3263567326. The cubic root of 820898502 is about 936.3319029860.

The spelling of 820898502 in words is "eight hundred twenty million, eight hundred ninety-eight thousand, five hundred two".