12772445 has 16 divisors (see below), whose sum is σ = 17760000. Its totient is φ = 8636544.

The previous prime is 12772433. The next prime is 12772447. The reversal of 12772445 is 54427721.

12772445 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12772445 - 2⁶ = 12772381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12772447) 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, 56 + ... + 5054.

It is an arithmetic number, because the mean of its divisors is an integer number (1110000).

Almost surely, 2^12772445 is an apocalyptic number.

It is an amenable number.

12772445 is a deficient number, since it is larger than the sum of its proper divisors (4987555).

12772445 is an equidigital number, since it uses as much as digits as its factorization.

12772445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5084.

The product of its digits is 15680, while the sum is 32.

The square root of 12772445 is about 3573.8557609394. The cubic root of 12772445 is about 233.7534415690.

The spelling of 12772445 in words is "twelve million, seven hundred seventy-two thousand, four hundred forty-five".