12077312 has 72 divisors (see below), whose sum is σ = 27471360. Its totient is φ = 5253120.

The previous prime is 12077291. The next prime is 12077333. The reversal of 12077312 is 21377021.

It is an interprime number because it is at equal distance from previous prime (12077291) and next prime (12077333).

It is a super-2 number, since 2×12077312² = 291722930290688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63137 + ... + 63327.

Almost surely, 2^12077312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12077312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13735680).

12077312 is an abundant number, since it is smaller than the sum of its proper divisors (15394048).

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

12077312 is a wasteful number, since it uses less digits than its factorization.

12077312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 12077312 is about 3475.2427253359. The cubic root of 12077312 is about 229.4334638768.

The spelling of 12077312 in words is "twelve million, seventy-seven thousand, three hundred twelve".