12959771 has 4 divisors (see below), whose sum is σ = 14137944. Its totient is φ = 11781600.

The previous prime is 12959761. The next prime is 12959777. The reversal of 12959771 is 17795921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12959771 - 2¹⁸ = 12697627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12959777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589070 + ... + 589091.

It is an arithmetic number, because the mean of its divisors is an integer number (3534486).

Almost surely, 2^12959771 is an apocalyptic number.

12959771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12959771 is a deficient number, since it is larger than the sum of its proper divisors (1178173).

12959771 is a wasteful number, since it uses less digits than its factorization.

12959771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178172.

The product of its digits is 39690, while the sum is 41.

The square root of 12959771 is about 3599.9681943039. The cubic root of 12959771 is about 234.8906749671.

The spelling of 12959771 in words is "twelve million, nine hundred fifty-nine thousand, seven hundred seventy-one".