12949761 has 16 divisors (see below), whose sum is σ = 19104768. Its totient is φ = 7736400.

The previous prime is 12949691. The next prime is 12949787. The reversal of 12949761 is 16794921.

It is not a de Polignac number, because 12949761 - 2⁹ = 12949249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12949061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421 + ... + 5106.

It is an arithmetic number, because the mean of its divisors is an integer number (1194048).

Almost surely, 2^12949761 is an apocalyptic number.

12949761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12949761 is a deficient number, since it is larger than the sum of its proper divisors (6155007).

12949761 is a wasteful number, since it uses less digits than its factorization.

12949761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612.

The product of its digits is 27216, while the sum is 39.

The square root of 12949761 is about 3598.5776356777. The cubic root of 12949761 is about 234.8301836390.

The spelling of 12949761 in words is "twelve million, nine hundred forty-nine thousand, seven hundred sixty-one".