12737772 has 36 divisors (see below), whose sum is σ = 32685016. Its totient is φ = 4181760.

The previous prime is 12737759. The next prime is 12737773. The reversal of 12737772 is 27773721.

12737772 is digitally balanced in base 2, because in such base 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 (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12737773) 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 + ... + 5052.

Almost surely, 2^12737772 is an apocalyptic number.

12737772 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 12737772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16342508).

12737772 is an abundant number, since it is smaller than the sum of its proper divisors (19947244).

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

12737772 is a wasteful number, since it uses less digits than its factorization.

12737772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358 (or 5353 counting only the distinct ones).

The product of its digits is 28812, while the sum is 36.

The square root of 12737772 is about 3569.0015410476. The cubic root of 12737772 is about 233.5417285614.

It can be divided in two parts, 127377 and 72, that added together give a square (127449 = 357²).

The spelling of 12737772 in words is "twelve million, seven hundred thirty-seven thousand, seven hundred seventy-two".