12799776 has 192 divisors, whose sum is σ = 41803776. Its totient is φ = 3379200.

The previous prime is 12799769. The next prime is 12799781. The reversal of 12799776 is 67799721.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 412881 + ... + 412911.

It is an arithmetic number, because the mean of its divisors is an integer number (217728).

Almost surely, 2^12799776 is an apocalyptic number.

12799776 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 12799776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20901888).

12799776 is an abundant number, since it is smaller than the sum of its proper divisors (29004000).

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

12799776 is a wasteful number, since it uses less digits than its factorization.

12799776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 87 counting only the distinct ones).

The product of its digits is 333396, while the sum is 48.

The square root of 12799776 is about 3577.6774589110. The cubic root of 12799776 is about 233.9200545075.

12799776 divided by its sum of digits (48) gives a palindrome (266662).

Subtracting 12799776 from its reverse (67799721), we obtain a palindrome (54999945).

The spelling of 12799776 in words is "twelve million, seven hundred ninety-nine thousand, seven hundred seventy-six".