12277776 has 40 divisors (see below), whose sum is σ = 36249664. Its totient is φ = 3507840.

The previous prime is 12277721. The next prime is 12277799. The reversal of 12277776 is 67777221.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17935 + ... + 18606.

Almost surely, 2^12277776 is an apocalyptic number.

12277776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12277776 is an abundant number, since it is smaller than the sum of its proper divisors (23971888).

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

12277776 is a wasteful number, since it uses less digits than its factorization.

12277776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36559 (or 36553 counting only the distinct ones).

The product of its digits is 57624, while the sum is 39.

The square root of 12277776 is about 3503.9657532573. The cubic root of 12277776 is about 230.6959136663.

The spelling of 12277776 in words is "twelve million, two hundred seventy-seven thousand, seven hundred seventy-six".