814944077 has 2 divisors, whose sum is σ = 814944078. Its totient is φ = 814944076.

The previous prime is 814944071. The next prime is 814944101. The reversal of 814944077 is 770449418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 510127396 + 304816681 = 22586^2 + 17459^2 .

It is a cyclic number.

It is not a de Polignac number, because 814944077 - 2⁴ = 814944061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814944071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407472038 + 407472039.

It is an arithmetic number, because the mean of its divisors is an integer number (407472039).

Almost surely, 2^814944077 is an apocalyptic number.

It is an amenable number.

814944077 is a deficient number, since it is larger than the sum of its proper divisors (1).

814944077 is an equidigital number, since it uses as much as digits as its factorization.

814944077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 814944077 is about 28547.2253818125. The cubic root of 814944077 is about 934.0624982060.

The spelling of 814944077 in words is "eight hundred fourteen million, nine hundred forty-four thousand, seventy-seven".