808261287 has 16 divisors (see below), whose sum is σ = 1091775360. Its totient is φ = 531828000.

The previous prime is 808261283. The next prime is 808261313. The reversal of 808261287 is 782162808.

It is not a de Polignac number, because 808261287 - 2² = 808261283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808261283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96264 + ... + 104322.

It is an arithmetic number, because the mean of its divisors is an integer number (68235960).

Almost surely, 2^808261287 is an apocalyptic number.

808261287 is a deficient number, since it is larger than the sum of its proper divisors (283514073).

808261287 is a wasteful number, since it uses less digits than its factorization.

808261287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8494.

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 808261287 is about 28429.9364578959. The cubic root of 808261287 is about 931.5022881040.

The spelling of 808261287 in words is "eight hundred eight million, two hundred sixty-one thousand, two hundred eighty-seven".