1005842423 has 2 divisors, whose sum is σ = 1005842424. Its totient is φ = 1005842422.

The previous prime is 1005842419. The next prime is 1005842429. The reversal of 1005842423 is 3242485001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1005842423 - 2² = 1005842419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005842429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502921211 + 502921212.

It is an arithmetic number, because the mean of its divisors is an integer number (502921212).

Almost surely, 2^1005842423 is an apocalyptic number.

1005842423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005842423 is an equidigital number, since it uses as much as digits as its factorization.

1005842423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1005842423 is about 31715.0188869564. The cubic root of 1005842423 is about 1001.9436939395.

The spelling of 1005842423 in words is "one billion, five million, eight hundred forty-two thousand, four hundred twenty-three".