5639247 has 16 divisors (see below), whose sum is σ = 8392960. Its totient is φ = 3742200.

The previous prime is 5639243. The next prime is 5639261. The reversal of 5639247 is 7429365.

5639247 is a `hidden beast` number, since 563 + 92 + 4 + 7 = 666.

It is not a de Polignac number, because 5639247 - 2² = 5639243 is a prime.

It is a super-2 number, since 2×5639247² = 63602213454018, which contains 22 as substring.

It is a Duffinian number.

5639247 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5639243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8622 + ... + 9252.

It is an arithmetic number, because the mean of its divisors is an integer number (524560).

Almost surely, 2^5639247 is an apocalyptic number.

5639247 is a deficient number, since it is larger than the sum of its proper divisors (2753713).

5639247 is a wasteful number, since it uses less digits than its factorization.

5639247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 965 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 5639247 is about 2374.7098770166. The cubic root of 5639247 is about 177.9946869600.

It can be divided in two parts, 5639 and 247, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 5639247 in words is "five million, six hundred thirty-nine thousand, two hundred forty-seven".