12965720 has 16 divisors (see below), whose sum is σ = 29172960. Its totient is φ = 5186272.

The previous prime is 12965707. The next prime is 12965723. The reversal of 12965720 is 2756921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12965723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162032 + ... + 162111.

It is an arithmetic number, because the mean of its divisors is an integer number (1823310).

Almost surely, 2^12965720 is an apocalyptic number.

12965720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12965720 is an abundant number, since it is smaller than the sum of its proper divisors (16207240).

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

12965720 is a wasteful number, since it uses less digits than its factorization.

12965720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324154 (or 324150 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 12965720 is about 3600.7943568052. The cubic root of 12965720 is about 234.9266105523.

The spelling of 12965720 in words is "twelve million, nine hundred sixty-five thousand, seven hundred twenty".