814476881 has 2 divisors, whose sum is σ = 814476882. Its totient is φ = 814476880.

The previous prime is 814476877. The next prime is 814476961. The reversal of 814476881 is 188674418.

814476881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497067025 + 317409856 = 22295^2 + 17816^2 .

It is a cyclic number.

It is not a de Polignac number, because 814476881 - 2² = 814476877 is a prime.

It is a super-2 number, since 2×814476881² = 1326745179366976322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (814476181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407238440 + 407238441.

It is an arithmetic number, because the mean of its divisors is an integer number (407238441).

Almost surely, 2^814476881 is an apocalyptic number.

It is an amenable number.

814476881 is a deficient number, since it is larger than the sum of its proper divisors (1).

814476881 is an equidigital number, since it uses as much as digits as its factorization.

814476881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 344064, while the sum is 47.

The square root of 814476881 is about 28539.0413468988. The cubic root of 814476881 is about 933.8839691127.

The spelling of 814476881 in words is "eight hundred fourteen million, four hundred seventy-six thousand, eight hundred eighty-one".