1864393423 has 2 divisors, whose sum is σ = 1864393424. Its totient is φ = 1864393422.

The previous prime is 1864393387. The next prime is 1864393459. The reversal of 1864393423 is 3243934681.

It is a balanced prime because it is at equal distance from previous prime (1864393387) and next prime (1864393459).

It is a cyclic number.

It is not a de Polignac number, because 1864393423 - 2⁹ = 1864392911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1864393423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1864393463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932196711 + 932196712.

It is an arithmetic number, because the mean of its divisors is an integer number (932196712).

Almost surely, 2^1864393423 is an apocalyptic number.

1864393423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1864393423 is an equidigital number, since it uses as much as digits as its factorization.

1864393423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 43.

The square root of 1864393423 is about 43178.6222915924. The cubic root of 1864393423 is about 1230.7764773543.

The spelling of 1864393423 in words is "one billion, eight hundred sixty-four million, three hundred ninety-three thousand, four hundred twenty-three".