11777216 has 28 divisors (see below), whose sum is σ = 25496520. Its totient is φ = 5352960.

The previous prime is 11777201. The next prime is 11777221. The reversal of 11777216 is 61277711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7661 + ... + 9068.

It is an arithmetic number, because the mean of its divisors is an integer number (910590).

Almost surely, 2^11777216 is an apocalyptic number.

11777216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11777216 is an abundant number, since it is smaller than the sum of its proper divisors (13719304).

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

11777216 is a wasteful number, since it uses less digits than its factorization.

11777216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16752 (or 16742 counting only the distinct ones).

The product of its digits is 4116, while the sum is 32.

The square root of 11777216 is about 3431.7948656643. The cubic root of 11777216 is about 227.5171890567.

The spelling of 11777216 in words is "eleven million, seven hundred seventy-seven thousand, two hundred sixteen".