4164643 has 16 divisors (see below), whose sum is σ = 5114880. Its totient is φ = 3309696.

The previous prime is 4164637. The next prime is 4164673. The reversal of 4164643 is 3464614.

It is a happy number.

It is not a de Polignac number, because 4164643 - 2⁹ = 4164131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4164613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9180 + ... + 9622.

It is an arithmetic number, because the mean of its divisors is an integer number (319680).

Almost surely, 2^4164643 is an apocalyptic number.

4164643 is a deficient number, since it is larger than the sum of its proper divisors (950237).

4164643 is a wasteful number, since it uses less digits than its factorization.

4164643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546.

The product of its digits is 6912, while the sum is 28.

The square root of 4164643 is about 2040.7456970431. The cubic root of 4164643 is about 160.8888421665. Note that the first 4 decimals are identical.

It can be divided in two parts, 41646 and 43, that multiplied together give a triangular number (1790778 = T₁₈₉₂).

The spelling of 4164643 in words is "four million, one hundred sixty-four thousand, six hundred forty-three".