12611772 has 36 divisors (see below), whose sum is σ = 32323200. Its totient is φ = 4145472.

The previous prime is 12611759. The next prime is 12611777. The reversal of 12611772 is 27711621.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12611777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229 + ... + 5027.

Almost surely, 2^12611772 is an apocalyptic number.

12611772 is a gapful number since it is divisible by the number (12) 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 12611772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16161600).

12611772 is an abundant number, since it is smaller than the sum of its proper divisors (19711428).

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

12611772 is a wasteful number, since it uses less digits than its factorization.

12611772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4882 (or 4877 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 12611772 is about 3551.3056753819. The cubic root of 12611772 is about 232.7691229818.

The spelling of 12611772 in words is "twelve million, six hundred eleven thousand, seven hundred seventy-two".