2405791 has 2 divisors, whose sum is σ = 2405792. Its totient is φ = 2405790.

The previous prime is 2405773. The next prime is 2405797. The reversal of 2405791 is 1975042.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2405791 - 2²¹ = 308639 is a prime.

It is an Ulam number.

It is a zygodrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2405797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202895 + 1202896.

It is an arithmetic number, because the mean of its divisors is an integer number (1202896).

2^2405791 is an apocalyptic number.

2405791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405791 is an equidigital number, since it uses as much as digits as its factorization.

2405791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2405791 is about 1551.0612495965. The cubic root of 2405791 is about 133.9941892483.

The spelling of 2405791 in words is "two million, four hundred five thousand, seven hundred ninety-one".