11839423 has 2 divisors, whose sum is σ = 11839424. Its totient is φ = 11839422.

The previous prime is 11839417. The next prime is 11839433. The reversal of 11839423 is 32493811.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11839423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11839433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5919711 + 5919712.

It is an arithmetic number, because the mean of its divisors is an integer number (5919712).

Almost surely, 2^11839423 is an apocalyptic number.

11839423 is a deficient number, since it is larger than the sum of its proper divisors (1).

11839423 is an equidigital number, since it uses as much as digits as its factorization.

11839423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 11839423 is about 3440.8462621861. The cubic root of 11839423 is about 227.9170661229.

The spelling of 11839423 in words is "eleven million, eight hundred thirty-nine thousand, four hundred twenty-three".