12797980 has 24 divisors (see below), whose sum is σ = 28943712. Its totient is φ = 4725312.

The previous prime is 12797971. The next prime is 12797987. The reversal of 12797980 is 8979721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12797987) 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, 24352 + ... + 24871.

It is an arithmetic number, because the mean of its divisors is an integer number (1205988).

Almost surely, 2^12797980 is an apocalyptic number.

12797980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12797980 is an abundant number, since it is smaller than the sum of its proper divisors (16145732).

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

12797980 is a wasteful number, since it uses less digits than its factorization.

12797980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49245 (or 49243 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 12797980 is about 3577.4264492789. The cubic root of 12797980 is about 233.9091131684.

The spelling of 12797980 in words is "twelve million, seven hundred ninety-seven thousand, nine hundred eighty".