12748407 has 8 divisors (see below), whose sum is σ = 19426176. Its totient is φ = 7284792.

The previous prime is 12748403. The next prime is 12748427. The reversal of 12748407 is 70484721.

12748407 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12748407 - 2² = 12748403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12748403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303513 + ... + 303554.

It is an arithmetic number, because the mean of its divisors is an integer number (2428272).

Almost surely, 2^12748407 is an apocalyptic number.

12748407 is a deficient number, since it is larger than the sum of its proper divisors (6677769).

12748407 is an equidigital number, since it uses as much as digits as its factorization.

12748407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607077.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 12748407 is about 3570.4911426861. The cubic root of 12748407 is about 233.6067065751.

The spelling of 12748407 in words is "twelve million, seven hundred forty-eight thousand, four hundred seven".