5606639 has 4 divisors (see below), whose sum is σ = 5620440. Its totient is φ = 5592840.

The previous prime is 5606621. The next prime is 5606681. The reversal of 5606639 is 9366065.

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 5606639 - 2¹² = 5602543 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 5606599 and 5606608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5606339) 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, 6272 + ... + 7109.

It is an arithmetic number, because the mean of its divisors is an integer number (1405110).

Almost surely, 2^5606639 is an apocalyptic number.

5606639 is a deficient number, since it is larger than the sum of its proper divisors (13801).

5606639 is a wasteful number, since it uses less digits than its factorization.

5606639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13800.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 5606639 is about 2367.8342425094. The cubic root of 5606639 is about 177.6509487617.

The spelling of 5606639 in words is "five million, six hundred six thousand, six hundred thirty-nine".