808668881 has 4 divisors (see below), whose sum is σ = 810780672. Its totient is φ = 806557092.

The previous prime is 808668853. The next prime is 808668893. The reversal of 808668881 is 188866808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 808668881 - 2¹⁰ = 808667857 is a prime.

It is a super-2 number, since 2×808668881² = 1307890718195584322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (808668841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055321 + ... + 1056086.

It is an arithmetic number, because the mean of its divisors is an integer number (202695168).

Almost surely, 2^808668881 is an apocalyptic number.

It is an amenable number.

808668881 is a deficient number, since it is larger than the sum of its proper divisors (2111791).

808668881 is a wasteful number, since it uses less digits than its factorization.

808668881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111790.

The product of its (nonzero) digits is 1179648, while the sum is 53.

The square root of 808668881 is about 28437.1039488904. The cubic root of 808668881 is about 931.6588426515.

It can be divided in two parts, 8086 and 68881, that added together give a palindrome (76967).

The spelling of 808668881 in words is "eight hundred eight million, six hundred sixty-eight thousand, eight hundred eighty-one".