4213647 has 8 divisors (see below), whose sum is σ = 6242480. Its totient is φ = 2809080.

The previous prime is 4213639. The next prime is 4213673. The reversal of 4213647 is 7463124.

4213647 is a `hidden beast` number, since 4 + 2 + 13 + 647 = 666.

It is not a de Polignac number, because 4213647 - 2³ = 4213639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 156061 = 4213647 / (4 + 2 + 1 + 3 + 6 + 4 + 7).

It is a d-powerful number, because it can be written as 4⁷ + 2⁹ + 1 + 3² + 6² + 4¹¹ + 7⁴ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4213647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4213147) 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, 78004 + ... + 78057.

It is an arithmetic number, because the mean of its divisors is an integer number (780310).

Almost surely, 2^4213647 is an apocalyptic number.

4213647 is a deficient number, since it is larger than the sum of its proper divisors (2028833).

4213647 is a wasteful number, since it uses less digits than its factorization.

4213647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156070 (or 156064 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 4213647 is about 2052.7169800048. The cubic root of 4213647 is about 161.5174253612.

It can be divided in two parts, 42 and 13647, that added together give a square (13689 = 117²).

The spelling of 4213647 in words is "four million, two hundred thirteen thousand, six hundred forty-seven".