12679520 has 48 divisors (see below), whose sum is σ = 34237728. Its totient is φ = 4346880.

The previous prime is 12679507. The next prime is 12679523. The reversal of 12679520 is 2597621.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12679523) 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, 4541 + ... + 6780.

It is an arithmetic number, because the mean of its divisors is an integer number (713286).

Almost surely, 2^12679520 is an apocalyptic number.

12679520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12679520 is an abundant number, since it is smaller than the sum of its proper divisors (21558208).

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

12679520 is a wasteful number, since it uses less digits than its factorization.

12679520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11343 (or 11335 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 12679520 is about 3560.8313636004. The cubic root of 12679520 is about 233.1851757869.

The spelling of 12679520 in words is "twelve million, six hundred seventy-nine thousand, five hundred twenty".