1423471837 has 2 divisors, whose sum is σ = 1423471838. Its totient is φ = 1423471836.

The previous prime is 1423471813. The next prime is 1423471843. The reversal of 1423471837 is 7381743241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1400181561 + 23290276 = 37419^2 + 4826^2 .

It is an emirp because it is prime and its reverse (7381743241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423471837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1423471837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423471867) 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, 711735918 + 711735919.

It is an arithmetic number, because the mean of its divisors is an integer number (711735919).

Almost surely, 2^1423471837 is an apocalyptic number.

It is an amenable number.

1423471837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423471837 is an equidigital number, since it uses as much as digits as its factorization.

1423471837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 1423471837 is about 37728.9257334475. The cubic root of 1423471837 is about 1124.9061550032.

The spelling of 1423471837 in words is "one billion, four hundred twenty-three million, four hundred seventy-one thousand, eight hundred thirty-seven".