12858477 has 12 divisors (see below), whose sum is σ = 18213696. Its totient is φ = 8067520.

The previous prime is 12858467. The next prime is 12858493. The reversal of 12858477 is 77485821.

It is not a de Polignac number, because 12858477 - 2⁶ = 12858413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12858407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6549 + ... + 8282.

It is an arithmetic number, because the mean of its divisors is an integer number (1517808).

Almost surely, 2^12858477 is an apocalyptic number.

12858477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12858477 is a deficient number, since it is larger than the sum of its proper divisors (5355219).

12858477 is a wasteful number, since it uses less digits than its factorization.

12858477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14868 (or 14851 counting only the distinct ones).

The product of its digits is 125440, while the sum is 42.

The square root of 12858477 is about 3585.8718605104. The cubic root of 12858477 is about 234.2771025099.

The spelling of 12858477 in words is "twelve million, eight hundred fifty-eight thousand, four hundred seventy-seven".