802811000 has 32 divisors (see below), whose sum is σ = 1878580080. Its totient is φ = 321124000.

The previous prime is 802810997. The next prime is 802811017. The reversal of 802811000 is 118208.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400406 + ... + 402405.

Almost surely, 2^802811000 is an apocalyptic number.

It is an amenable number.

802811000 is an abundant number, since it is smaller than the sum of its proper divisors (1075769080).

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

802811000 is a wasteful number, since it uses less digits than its factorization.

802811000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802832 (or 802818 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 802811000 is about 28333.9196017777. The cubic root of 802811000 is about 929.4037878960.

Adding to 802811000 its reverse (118208), we get a palindrome (802929208).

The spelling of 802811000 in words is "eight hundred two million, eight hundred eleven thousand".