11429861 has 2 divisors, whose sum is σ = 11429862. Its totient is φ = 11429860.

The previous prime is 11429819. The next prime is 11429863. The reversal of 11429861 is 16892411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8850625 + 2579236 = 2975^2 + 1606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11429861 is a prime.

Together with 11429863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11429863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5714930 + 5714931.

It is an arithmetic number, because the mean of its divisors is an integer number (5714931).

Almost surely, 2^11429861 is an apocalyptic number.

It is an amenable number.

11429861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11429861 is an equidigital number, since it uses as much as digits as its factorization.

11429861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 32.

The square root of 11429861 is about 3380.8077437204. The cubic root of 11429861 is about 225.2580479698.

The spelling of 11429861 in words is "eleven million, four hundred twenty-nine thousand, eight hundred sixty-one".