914449681 has 2 divisors, whose sum is σ = 914449682. Its totient is φ = 914449680.

The previous prime is 914449661. The next prime is 914449699. The reversal of 914449681 is 186944419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 850305600 + 64144081 = 29160^2 + 8009^2 .

It is a cyclic number.

It is not a de Polignac number, because 914449681 - 2⁵ = 914449649 is a prime.

It is a super-2 number, since 2×914449681² = 1672436438162003522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (914449621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457224840 + 457224841.

It is an arithmetic number, because the mean of its divisors is an integer number (457224841).

Almost surely, 2^914449681 is an apocalyptic number.

It is an amenable number.

914449681 is a deficient number, since it is larger than the sum of its proper divisors (1).

914449681 is an equidigital number, since it uses as much as digits as its factorization.

914449681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 46.

The square root of 914449681 is about 30239.8690638700. The cubic root of 914449681 is about 970.6290180925.

The spelling of 914449681 in words is "nine hundred fourteen million, four hundred forty-nine thousand, six hundred eighty-one".