634026881 has 2 divisors, whose sum is σ = 634026882. Its totient is φ = 634026880.

The previous prime is 634026847. The next prime is 634026889. The reversal of 634026881 is 188620436.

It is a happy number.

634026881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418407025 + 215619856 = 20455^2 + 14684^2 .

It is a cyclic number.

It is not a de Polignac number, because 634026881 - 2⁶ = 634026817 is a prime.

It is a super-2 number, since 2×634026881² = 803980171661176322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (634026889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317013440 + 317013441.

It is an arithmetic number, because the mean of its divisors is an integer number (317013441).

Almost surely, 2^634026881 is an apocalyptic number.

It is an amenable number.

634026881 is a deficient number, since it is larger than the sum of its proper divisors (1).

634026881 is an equidigital number, since it uses as much as digits as its factorization.

634026881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 634026881 is about 25179.8904088163. The cubic root of 634026881 is about 859.0845138954.

The spelling of 634026881 in words is "six hundred thirty-four million, twenty-six thousand, eight hundred eighty-one".