4075643 has 12 divisors (see below), whose sum is σ = 4826304. Its totient is φ = 3418800.

The previous prime is 4075637. The next prime is 4075657. The reversal of 4075643 is 3465704.

It is not a de Polignac number, because 4075643 - 2⁴ = 4075627 is a prime.

It is a super-2 number, since 2×4075643² = 33221731726898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4075693) 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 11 ways as a sum of consecutive naturals, for example, 278 + ... + 2868.

It is an arithmetic number, because the mean of its divisors is an integer number (402192).

Almost surely, 2^4075643 is an apocalyptic number.

4075643 is a deficient number, since it is larger than the sum of its proper divisors (750661).

4075643 is a wasteful number, since it uses less digits than its factorization.

4075643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626 (or 2615 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 4075643 is about 2018.8221813721. The cubic root of 4075643 is about 159.7344945574.

The spelling of 4075643 in words is "four million, seventy-five thousand, six hundred forty-three".