12786071 has 8 divisors (see below), whose sum is σ = 13396800. Its totient is φ = 12186720.

The previous prime is 12786061. The next prime is 12786089. The reversal of 12786071 is 17068721.

12786071 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 a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12786071 is a prime.

It is a super-2 number, since 2×12786071² = 326967223234082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12786001) 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, 500 + ... + 5081.

It is an arithmetic number, because the mean of its divisors is an integer number (1674600).

Almost surely, 2^12786071 is an apocalyptic number.

12786071 is a deficient number, since it is larger than the sum of its proper divisors (610729).

12786071 is an equidigital number, since it uses as much as digits as its factorization.

12786071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 12786071 is about 3575.7615971986. The cubic root of 12786071 is about 233.8365369202.

The spelling of 12786071 in words is "twelve million, seven hundred eighty-six thousand, seventy-one".