2405923859 has 2 divisors, whose sum is σ = 2405923860. Its totient is φ = 2405923858.

The previous prime is 2405923823. The next prime is 2405923873. The reversal of 2405923859 is 9583295042.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2405923859 is a prime.

It is not a weakly prime, because it can be changed into another prime (2405920859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202961929 + 1202961930.

It is an arithmetic number, because the mean of its divisors is an integer number (1202961930).

Almost surely, 2^2405923859 is an apocalyptic number.

2405923859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405923859 is an equidigital number, since it uses as much as digits as its factorization.

2405923859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 2405923859 is about 49050.2177263261. The cubic root of 2405923859 is about 1339.9665579758.

The spelling of 2405923859 in words is "two billion, four hundred five million, nine hundred twenty-three thousand, eight hundred fifty-nine".