11861469 has 6 divisors (see below), whose sum is σ = 17133246. Its totient is φ = 7907640.

The previous prime is 11861467. The next prime is 11861527. The reversal of 11861469 is 96416811.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9998244 + 1863225 = 3162^2 + 1365^2 .

It is not a de Polignac number, because 11861469 - 2¹ = 11861467 is a prime.

It is a super-2 number, since 2×11861469² = 281388893675922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11861467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 658962 + ... + 658979.

It is an arithmetic number, because the mean of its divisors is an integer number (2855541).

Almost surely, 2^11861469 is an apocalyptic number.

It is an amenable number.

11861469 is a deficient number, since it is larger than the sum of its proper divisors (5271777).

11861469 is a wasteful number, since it uses less digits than its factorization.

11861469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317947 (or 1317944 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 11861469 is about 3444.0483446084. The cubic root of 11861469 is about 228.0584453124.

The spelling of 11861469 in words is "eleven million, eight hundred sixty-one thousand, four hundred sixty-nine".