12576387 has 4 divisors (see below), whose sum is σ = 16768520. Its totient is φ = 8384256.

The previous prime is 12576371. The next prime is 12576391. The reversal of 12576387 is 78367521.

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

It is not a de Polignac number, because 12576387 - 2⁴ = 12576371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12576287) 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, 2096062 + ... + 2096067.

It is an arithmetic number, because the mean of its divisors is an integer number (4192130).

Almost surely, 2^12576387 is an apocalyptic number.

12576387 is a deficient number, since it is larger than the sum of its proper divisors (4192133).

12576387 is an equidigital number, since it uses as much as digits as its factorization.

12576387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192132.

The product of its digits is 70560, while the sum is 39.

The square root of 12576387 is about 3546.3202055088. The cubic root of 12576387 is about 232.5512246943.

The spelling of 12576387 in words is "twelve million, five hundred seventy-six thousand, three hundred eighty-seven".