814454897 has 2 divisors, whose sum is σ = 814454898. Its totient is φ = 814454896.

The previous prime is 814454857. The next prime is 814454899. The reversal of 814454897 is 798454418.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 782656576 + 31798321 = 27976^2 + 5639^2 .

It is a cyclic number.

It is not a de Polignac number, because 814454897 - 2²⁴ = 797677681 is a prime.

Together with 814454899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (814454899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407227448 + 407227449.

It is an arithmetic number, because the mean of its divisors is an integer number (407227449).

Almost surely, 2^814454897 is an apocalyptic number.

It is an amenable number.

814454897 is a deficient number, since it is larger than the sum of its proper divisors (1).

814454897 is an equidigital number, since it uses as much as digits as its factorization.

814454897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 50.

The square root of 814454897 is about 28538.6561877044. The cubic root of 814454897 is about 933.8755667093.

The spelling of 814454897 in words is "eight hundred fourteen million, four hundred fifty-four thousand, eight hundred ninety-seven".