808000861 has 8 divisors (see below), whose sum is σ = 822528000. Its totient is φ = 793581360.

The previous prime is 808000801. The next prime is 808000883. The reversal of 808000861 is 168000808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 808000861 - 2⁷ = 808000733 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 (808000801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11686 + ... + 41863.

It is an arithmetic number, because the mean of its divisors is an integer number (102816000).

Almost surely, 2^808000861 is an apocalyptic number.

It is an amenable number.

808000861 is a deficient number, since it is larger than the sum of its proper divisors (14527139).

808000861 is a wasteful number, since it uses less digits than its factorization.

808000861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53819.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 808000861 is about 28425.3559520369. The cubic root of 808000861 is about 931.4022323928.

The spelling of 808000861 in words is "eight hundred eight million, eight hundred sixty-one", and thus it is an aban number.