814469939 has 2 divisors, whose sum is σ = 814469940. Its totient is φ = 814469938.

The previous prime is 814469927. The next prime is 814469977. The reversal of 814469939 is 939964418.

814469939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 814469939 - 2¹² = 814465843 is a prime.

It is a super-2 number, since 2×814469939² = 1326722563069327442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (814469039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407234969 + 407234970.

It is an arithmetic number, because the mean of its divisors is an integer number (407234970).

Almost surely, 2^814469939 is an apocalyptic number.

814469939 is a deficient number, since it is larger than the sum of its proper divisors (1).

814469939 is an equidigital number, since it uses as much as digits as its factorization.

814469939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 53.

The square root of 814469939 is about 28538.9197237737. The cubic root of 814469939 is about 933.8813158592.

The spelling of 814469939 in words is "eight hundred fourteen million, four hundred sixty-nine thousand, nine hundred thirty-nine".