2405387 has 2 divisors, whose sum is σ = 2405388. Its totient is φ = 2405386.

The previous prime is 2405369. The next prime is 2405393. The reversal of 2405387 is 7835042.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2405387 - 2¹⁸ = 2143243 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 4 + 0 + 5 + 3¹¹ + 8⁷ + 7 .

It is equal to p₁₇₆₆₆₃ and since 2405387 and 176663 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2405327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202693 + 1202694.

It is an arithmetic number, because the mean of its divisors is an integer number (1202694).

2^2405387 is an apocalyptic number.

2405387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405387 is an equidigital number, since it uses as much as digits as its factorization.

2405387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2405387 is about 1550.9310107158. The cubic root of 2405387 is about 133.9866883636.

The spelling of 2405387 in words is "two million, four hundred five thousand, three hundred eighty-seven".