1423490947 has 2 divisors, whose sum is σ = 1423490948. Its totient is φ = 1423490946.

The previous prime is 1423490909. The next prime is 1423491011. The reversal of 1423490947 is 7490943241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1423490947 - 2⁷ = 1423490819 is a prime.

It is not a weakly prime, because it can be changed into another prime (1423490347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711745473 + 711745474.

It is an arithmetic number, because the mean of its divisors is an integer number (711745474).

Almost surely, 2^1423490947 is an apocalyptic number.

1423490947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423490947 is an equidigital number, since it uses as much as digits as its factorization.

1423490947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 1423490947 is about 37729.1789865616. The cubic root of 1423490947 is about 1124.9111889068.

The spelling of 1423490947 in words is "one billion, four hundred twenty-three million, four hundred ninety thousand, nine hundred forty-seven".