11676780 has 36 divisors (see below), whose sum is σ = 35420112. Its totient is φ = 3113760.

The previous prime is 11676767. The next prime is 11676787. The reversal of 11676780 is 8767611.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (11676787) 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 11 ways as a sum of consecutive naturals, for example, 32256 + ... + 32615.

It is an arithmetic number, because the mean of its divisors is an integer number (983892).

Almost surely, 2^11676780 is an apocalyptic number.

11676780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11676780 is an abundant number, since it is smaller than the sum of its proper divisors (23743332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11676780 is a wasteful number, since it uses less digits than its factorization.

11676780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64886 (or 64881 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 11676780 is about 3417.1303750369. The cubic root of 11676780 is about 226.8685868916.

The spelling of 11676780 in words is "eleven million, six hundred seventy-six thousand, seven hundred eighty".