1423634743 has 2 divisors, whose sum is σ = 1423634744. Its totient is φ = 1423634742.

The previous prime is 1423634713. The next prime is 1423634789. The reversal of 1423634743 is 3474363241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1423634743 - 2⁵ = 1423634711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423634713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711817371 + 711817372.

It is an arithmetic number, because the mean of its divisors is an integer number (711817372).

Almost surely, 2^1423634743 is an apocalyptic number.

1423634743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423634743 is an equidigital number, since it uses as much as digits as its factorization.

1423634743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 37.

The square root of 1423634743 is about 37731.0845722728. The cubic root of 1423634743 is about 1124.9490658092.

Adding to 1423634743 its reverse (3474363241), we get a palindrome (4897997984).

The spelling of 1423634743 in words is "one billion, four hundred twenty-three million, six hundred thirty-four thousand, seven hundred forty-three".