5639045 has 4 divisors (see below), whose sum is σ = 6766860. Its totient is φ = 4511232.

The previous prime is 5639027. The next prime is 5639069. The reversal of 5639045 is 5409365.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 982081 + 4656964 = 991^2 + 2158^2 .

It is a cyclic number.

It is not a de Polignac number, because 5639045 - 2¹⁰ = 5638021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563900 + ... + 563909.

It is an arithmetic number, because the mean of its divisors is an integer number (1691715).

Almost surely, 2^5639045 is an apocalyptic number.

It is an amenable number.

5639045 is a deficient number, since it is larger than the sum of its proper divisors (1127815).

5639045 is a wasteful number, since it uses less digits than its factorization.

5639045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127814.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 5639045 is about 2374.6673451244. The cubic root of 5639045 is about 177.9925616552.

The spelling of 5639045 in words is "five million, six hundred thirty-nine thousand, forty-five".