4032643 has 4 divisors (see below), whose sum is σ = 4036968. Its totient is φ = 4028320.

The previous prime is 4032641. The next prime is 4032671. The reversal of 4032643 is 3462304.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4032643 - 2¹ = 4032641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4032641) 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, 121 + ... + 2842.

It is an arithmetic number, because the mean of its divisors is an integer number (1009242).

Almost surely, 2^4032643 is an apocalyptic number.

4032643 is a deficient number, since it is larger than the sum of its proper divisors (4325).

4032643 is a wasteful number, since it uses less digits than its factorization.

4032643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 4032643 is about 2008.1441681314. The cubic root of 4032643 is about 159.1707486260.

Adding to 4032643 its reverse (3462304), we get a palindrome (7494947).

The spelling of 4032643 in words is "four million, thirty-two thousand, six hundred forty-three".