12953709 has 16 divisors (see below), whose sum is σ = 19436800. Its totient is φ = 8525088.

The previous prime is 12953701. The next prime is 12953719. The reversal of 12953709 is 90735921.

12953709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12953709 - 2³ = 12953701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12953701) 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, 904 + ... + 5169.

It is an arithmetic number, because the mean of its divisors is an integer number (1214800).

Almost surely, 2^12953709 is an apocalyptic number.

It is an amenable number.

12953709 is a deficient number, since it is larger than the sum of its proper divisors (6483091).

12953709 is an equidigital number, since it uses as much as digits as its factorization.

12953709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6161 (or 6155 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 12953709 is about 3599.1261439411. The cubic root of 12953709 is about 234.8540454787.

The spelling of 12953709 in words is "twelve million, nine hundred fifty-three thousand, seven hundred nine".