1423609867 has 2 divisors, whose sum is σ = 1423609868. Its totient is φ = 1423609866.

The previous prime is 1423609849. The next prime is 1423609919. The reversal of 1423609867 is 7689063241.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423609867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1423601867) 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, 711804933 + 711804934.

It is an arithmetic number, because the mean of its divisors is an integer number (711804934).

Almost surely, 2^1423609867 is an apocalyptic number.

1423609867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423609867 is an equidigital number, since it uses as much as digits as its factorization.

1423609867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 1423609867 is about 37730.7549222117. The cubic root of 1423609867 is about 1124.9425134741.

It can be divided in two parts, 14 and 23609867, that added together give a square (23609881 = 4859²).

The spelling of 1423609867 in words is "one billion, four hundred twenty-three million, six hundred nine thousand, eight hundred sixty-seven".