804668881 has 2 divisors, whose sum is σ = 804668882. Its totient is φ = 804668880.

The previous prime is 804668849. The next prime is 804668929. The reversal of 804668881 is 188866408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 801795856 + 2873025 = 28316^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 804668881 - 2⁵ = 804668849 is a prime.

It is a super-2 number, since 2×804668881² = 1294984016099584322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (804668801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402334440 + 402334441.

It is an arithmetic number, because the mean of its divisors is an integer number (402334441).

Almost surely, 2^804668881 is an apocalyptic number.

It is an amenable number.

804668881 is a deficient number, since it is larger than the sum of its proper divisors (1).

804668881 is an equidigital number, since it uses as much as digits as its factorization.

804668881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 589824, while the sum is 49.

The square root of 804668881 is about 28366.6861124101. The cubic root of 804668881 is about 930.1201837203.

The spelling of 804668881 in words is "eight hundred four million, six hundred sixty-eight thousand, eight hundred eighty-one".