12758471 has 4 divisors (see below), whose sum is σ = 13918344. Its totient is φ = 11598600.

The previous prime is 12758461. The next prime is 12758497. The reversal of 12758471 is 17485721.

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 12758471 - 2⁶ = 12758407 is a prime.

It is a super-3 number, since 3×12758471³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12758411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579920 + ... + 579941.

It is an arithmetic number, because the mean of its divisors is an integer number (3479586).

Almost surely, 2^12758471 is an apocalyptic number.

12758471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12758471 is a deficient number, since it is larger than the sum of its proper divisors (1159873).

12758471 is a wasteful number, since it uses less digits than its factorization.

12758471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159872.

The product of its digits is 15680, while the sum is 35.

The square root of 12758471 is about 3571.9001945743. The cubic root of 12758471 is about 233.6681626067.

The spelling of 12758471 in words is "twelve million, seven hundred fifty-eight thousand, four hundred seventy-one".