11407861 has 2 divisors, whose sum is σ = 11407862. Its totient is φ = 11407860.

The previous prime is 11407843. The next prime is 11407871. The reversal of 11407861 is 16870411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6345361 + 5062500 = 2519^2 + 2250^2 .

It is a cyclic number.

It is not a de Polignac number, because 11407861 - 2⁵ = 11407829 is a prime.

It is a Chen prime.

It is equal to p₇₅₁₆₀₉ and since 11407861 and 751609 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11407801) 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, 5703930 + 5703931.

It is an arithmetic number, because the mean of its divisors is an integer number (5703931).

Almost surely, 2^11407861 is an apocalyptic number.

It is an amenable number.

11407861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11407861 is an equidigital number, since it uses as much as digits as its factorization.

11407861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 11407861 is about 3377.5525162460. The cubic root of 11407861 is about 225.1134308715.

The spelling of 11407861 in words is "eleven million, four hundred seven thousand, eight hundred sixty-one".