12472647 has 16 divisors (see below), whose sum is σ = 18931968. Its totient is φ = 7230080.

The previous prime is 12472643. The next prime is 12472657. The reversal of 12472647 is 74627421.

It is not a de Polignac number, because 12472647 - 2² = 12472643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12472643) 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 15 ways as a sum of consecutive naturals, for example, 7458 + ... + 8975.

It is an arithmetic number, because the mean of its divisors is an integer number (1183248).

Almost surely, 2^12472647 is an apocalyptic number.

12472647 is a deficient number, since it is larger than the sum of its proper divisors (6459321).

12472647 is a wasteful number, since it uses less digits than its factorization.

12472647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16470.

The product of its digits is 18816, while the sum is 33.

The square root of 12472647 is about 3531.6634890657. The cubic root of 12472647 is about 231.9100362147.

It can be divided in two parts, 124 and 72647, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 12472647 in words is "twelve million, four hundred seventy-two thousand, six hundred forty-seven".