12277900 has 36 divisors (see below), whose sum is σ = 27107640. Its totient is φ = 4825600.

The previous prime is 12277877. The next prime is 12277913. The reversal of 12277900 is 977221.

It is a happy number.

12277900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4860 + ... + 6940.

It is an arithmetic number, because the mean of its divisors is an integer number (752990).

Almost surely, 2^12277900 is an apocalyptic number.

12277900 is a gapful number since it is divisible by the number (10) 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 12277900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13553820).

12277900 is an abundant number, since it is smaller than the sum of its proper divisors (14829740).

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

12277900 is a wasteful number, since it uses less digits than its factorization.

12277900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154 (or 2147 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 12277900 is about 3503.9834474495. The cubic root of 12277900 is about 230.6966903053.

The spelling of 12277900 in words is "twelve million, two hundred seventy-seven thousand, nine hundred".