814462861 has 2 divisors, whose sum is σ = 814462862. Its totient is φ = 814462860.

The previous prime is 814462849. The next prime is 814462879. The reversal of 814462861 is 168264418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 782041225 + 32421636 = 27965^2 + 5694^2 .

It is a cyclic number.

It is not a de Polignac number, because 814462861 - 2¹¹ = 814460813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (818462861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407231430 + 407231431.

It is an arithmetic number, because the mean of its divisors is an integer number (407231431).

Almost surely, 2^814462861 is an apocalyptic number.

It is an amenable number.

814462861 is a deficient number, since it is larger than the sum of its proper divisors (1).

814462861 is an equidigital number, since it uses as much as digits as its factorization.

814462861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 40.

The square root of 814462861 is about 28538.7957174090. The cubic root of 814462861 is about 933.8786106105.

The spelling of 814462861 in words is "eight hundred fourteen million, four hundred sixty-two thousand, eight hundred sixty-one".