12077680 has 40 divisors (see below), whose sum is σ = 28248192. Its totient is φ = 4802304.

The previous prime is 12077671. The next prime is 12077683. The reversal of 12077680 is 8677021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12077683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17502 + ... + 18178.

Almost surely, 2^12077680 is an apocalyptic number.

12077680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12077680 is an abundant number, since it is smaller than the sum of its proper divisors (16170512).

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

12077680 is a wasteful number, since it uses less digits than its factorization.

12077680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 12077680 is about 3475.2956708746. The cubic root of 12077680 is about 229.4357941596.

The spelling of 12077680 in words is "twelve million, seventy-seven thousand, six hundred eighty".