11780869 has 8 divisors (see below), whose sum is σ = 12062720. Its totient is φ = 11502000.

The previous prime is 11780863. The next prime is 11780887. The reversal of 11780869 is 96808711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11780869 - 2⁹ = 11780357 is a prime.

It is a super-2 number, since 2×11780869² = 277577748790322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11780863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8572 + ... + 9850.

It is an arithmetic number, because the mean of its divisors is an integer number (1507840).

Almost surely, 2^11780869 is an apocalyptic number.

It is an amenable number.

11780869 is a deficient number, since it is larger than the sum of its proper divisors (281851).

11780869 is a wasteful number, since it uses less digits than its factorization.

11780869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 11780869 is about 3432.3270531813. The cubic root of 11780869 is about 227.5407100194.

The spelling of 11780869 in words is "eleven million, seven hundred eighty thousand, eight hundred sixty-nine".