12980856 has 32 divisors (see below), whose sum is σ = 37088640. Its totient is φ = 3708768.

The previous prime is 12980837. The next prime is 12980873. The reversal of 12980856 is 65808921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38466 + ... + 38801.

It is an arithmetic number, because the mean of its divisors is an integer number (1159020).

Almost surely, 2^12980856 is an apocalyptic number.

It is an amenable number.

12980856 is an abundant number, since it is smaller than the sum of its proper divisors (24107784).

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

12980856 is a wasteful number, since it uses less digits than its factorization.

12980856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77283 (or 77279 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 12980856 is about 3602.8955022315. The cubic root of 12980856 is about 235.0179916812.

The spelling of 12980856 in words is "twelve million, nine hundred eighty thousand, eight hundred fifty-six".