12757399 has 4 divisors (see below), whose sum is σ = 13168960. Its totient is φ = 12345840.

The previous prime is 12757391. The next prime is 12757421. The reversal of 12757399 is 99375721.

12757399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12757399 - 2³ = 12757391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12757391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205734 + ... + 205795.

It is an arithmetic number, because the mean of its divisors is an integer number (3292240).

Almost surely, 2^12757399 is an apocalyptic number.

12757399 is a deficient number, since it is larger than the sum of its proper divisors (411561).

12757399 is an equidigital number, since it uses as much as digits as its factorization.

12757399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411560.

The product of its digits is 119070, while the sum is 43.

The square root of 12757399 is about 3571.7501312382. The cubic root of 12757399 is about 233.6616179539.

The spelling of 12757399 in words is "twelve million, seven hundred fifty-seven thousand, three hundred ninety-nine".