12007776 has 96 divisors (see below), whose sum is σ = 35054208. Its totient is φ = 3568640.

The previous prime is 12007759. The next prime is 12007777. The reversal of 12007776 is 67770021.

It is a happy number.

12007776 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12007777) 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, 87580 + ... + 87716.

It is an arithmetic number, because the mean of its divisors is an integer number (365148).

Almost surely, 2^12007776 is an apocalyptic number.

12007776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12007776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17527104).

12007776 is an abundant number, since it is smaller than the sum of its proper divisors (23046432).

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

12007776 is a wasteful number, since it uses less digits than its factorization.

12007776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 12007776 is about 3465.2238022962. The cubic root of 12007776 is about 228.9922894882.

Adding to 12007776 its reverse (67770021), we get a palindrome (79777797).

The spelling of 12007776 in words is "twelve million, seven thousand, seven hundred seventy-six".