4016643 has 4 divisors (see below), whose sum is σ = 5355528. Its totient is φ = 2677760.

The previous prime is 4016611. The next prime is 4016671. The reversal of 4016643 is 3466104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4016643 - 2⁵ = 4016611 is a prime.

It is a super-2 number, since 2×4016643² = 32266841978898, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4016443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669438 + ... + 669443.

It is an arithmetic number, because the mean of its divisors is an integer number (1338882).

Almost surely, 2^4016643 is an apocalyptic number.

4016643 is a deficient number, since it is larger than the sum of its proper divisors (1338885).

4016643 is a wasteful number, since it uses less digits than its factorization.

4016643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338884.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 4016643 is about 2004.1564310203. The cubic root of 4016643 is about 158.9599598556.

The spelling of 4016643 in words is "four million, sixteen thousand, six hundred forty-three".