11869431 has 16 divisors (see below), whose sum is σ = 18153984. Its totient is φ = 6757344.

The previous prime is 11869423. The next prime is 11869463. The reversal of 11869431 is 13496811.

It is not a de Polignac number, because 11869431 - 2³ = 11869423 is a prime.

It is a super-2 number, since 2×11869431² = 281766784527522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11869392 and 11869401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11869421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5766 + ... + 7548.

It is an arithmetic number, because the mean of its divisors is an integer number (1134624).

Almost surely, 2^11869431 is an apocalyptic number.

11869431 is a deficient number, since it is larger than the sum of its proper divisors (6284553).

11869431 is a wasteful number, since it uses less digits than its factorization.

11869431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110.

The product of its digits is 5184, while the sum is 33.

The square root of 11869431 is about 3445.2040578172. The cubic root of 11869431 is about 228.1094619053.

The spelling of 11869431 in words is "eleven million, eight hundred sixty-nine thousand, four hundred thirty-one".