12980775 has 24 divisors (see below), whose sum is σ = 22726224. Its totient is φ = 6515200.

The previous prime is 12980753. The next prime is 12980783. The reversal of 12980775 is 57708921.

It is not a de Polignac number, because 12980775 - 2⁸ = 12980519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3816 + ... + 6365.

It is an arithmetic number, because the mean of its divisors is an integer number (946926).

Almost surely, 2^12980775 is an apocalyptic number.

12980775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12980775 is a deficient number, since it is larger than the sum of its proper divisors (9745449).

12980775 is a wasteful number, since it uses less digits than its factorization.

12980775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211 (or 10206 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 12980775 is about 3602.8842612551. The cubic root of 12980775 is about 235.0175028460.

The spelling of 12980775 in words is "twelve million, nine hundred eighty thousand, seven hundred seventy-five".