814004623 has 2 divisors, whose sum is σ = 814004624. Its totient is φ = 814004622.

The previous prime is 814004621. The next prime is 814004627. The reversal of 814004623 is 326400418.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 814004623 - 2¹ = 814004621 is a prime.

Together with 814004621, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 814004591 and 814004600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814004621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407002311 + 407002312.

It is an arithmetic number, because the mean of its divisors is an integer number (407002312).

Almost surely, 2^814004623 is an apocalyptic number.

814004623 is a deficient number, since it is larger than the sum of its proper divisors (1).

814004623 is an equidigital number, since it uses as much as digits as its factorization.

814004623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 814004623 is about 28530.7662532923. The cubic root of 814004623 is about 933.7034362845.

The spelling of 814004623 in words is "eight hundred fourteen million, four thousand, six hundred twenty-three".