11856469 has 2 divisors, whose sum is σ = 11856470. Its totient is φ = 11856468.

The previous prime is 11856461. The next prime is 11856473. The reversal of 11856469 is 96465811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9375844 + 2480625 = 3062^2 + 1575^2 .

It is a cyclic number.

It is not a de Polignac number, because 11856469 - 2³ = 11856461 is a prime.

It is a super-2 number, since 2×11856469² = 281151714295922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11856461) 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, 5928234 + 5928235.

It is an arithmetic number, because the mean of its divisors is an integer number (5928235).

Almost surely, 2^11856469 is an apocalyptic number.

It is an amenable number.

11856469 is a deficient number, since it is larger than the sum of its proper divisors (1).

11856469 is an equidigital number, since it uses as much as digits as its factorization.

11856469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The square root of 11856469 is about 3443.3223781691. The cubic root of 11856469 is about 228.0263960924.

The spelling of 11856469 in words is "eleven million, eight hundred fifty-six thousand, four hundred sixty-nine".