5539643 has 4 divisors (see below), whose sum is σ = 5552928. Its totient is φ = 5526360.

The previous prime is 5539631. The next prime is 5539657. The reversal of 5539643 is 3469355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3469355 = 5 ⋅693871.

It is a cyclic number.

It is not a de Polignac number, because 5539643 - 2⁶ = 5539579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5539663) 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, 5996 + ... + 6857.

It is an arithmetic number, because the mean of its divisors is an integer number (1388232).

Almost surely, 2^5539643 is an apocalyptic number.

5539643 is a deficient number, since it is larger than the sum of its proper divisors (13285).

5539643 is a wasteful number, since it uses less digits than its factorization.

5539643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284.

The product of its digits is 48600, while the sum is 35.

The square root of 5539643 is about 2353.6446205831. The cubic root of 5539643 is about 176.9405036928.

The spelling of 5539643 in words is "five million, five hundred thirty-nine thousand, six hundred forty-three".