814614623 has 2 divisors, whose sum is σ = 814614624. Its totient is φ = 814614622.

The previous prime is 814614599. The next prime is 814614629. The reversal of 814614623 is 326416418.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-814614623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814614629) 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, 407307311 + 407307312.

It is an arithmetic number, because the mean of its divisors is an integer number (407307312).

Almost surely, 2^814614623 is an apocalyptic number.

814614623 is a deficient number, since it is larger than the sum of its proper divisors (1).

814614623 is an equidigital number, since it uses as much as digits as its factorization.

814614623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The square root of 814614623 is about 28541.4544653912. The cubic root of 814614623 is about 933.9366114069.

The spelling of 814614623 in words is "eight hundred fourteen million, six hundred fourteen thousand, six hundred twenty-three".