810698980 has 96 divisors (see below), whose sum is σ = 2163087360. Its totient is φ = 248279040.

The previous prime is 810698957. The next prime is 810698989. The reversal of 810698980 is 89896018.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (810698989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49236 + ... + 63604.

It is an arithmetic number, because the mean of its divisors is an integer number (22532160).

Almost surely, 2^810698980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 810698980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081543680).

810698980 is an abundant number, since it is smaller than the sum of its proper divisors (1352388380).

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

810698980 is a wasteful number, since it uses less digits than its factorization.

810698980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14429 (or 14427 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 810698980 is about 28472.7761203575. The cubic root of 810698980 is about 932.4378096799.

The spelling of 810698980 in words is "eight hundred ten million, six hundred ninety-eight thousand, nine hundred eighty".