5624639 has 4 divisors (see below), whose sum is σ = 5630424. Its totient is φ = 5618856.

The previous prime is 5624621. The next prime is 5624651. The reversal of 5624639 is 9364265.

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 5624639 - 2¹² = 5620543 is a prime.

It is a d-powerful number, because it can be written as 5 + 6⁴ + 2⁷ + 4⁹ + 6⁶ + 3¹⁴ + 9⁶ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5624599 and 5624608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5624039) 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, 1037 + ... + 3510.

It is an arithmetic number, because the mean of its divisors is an integer number (1407606).

Almost surely, 2^5624639 is an apocalyptic number.

5624639 is a deficient number, since it is larger than the sum of its proper divisors (5785).

5624639 is a wasteful number, since it uses less digits than its factorization.

5624639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784.

The product of its digits is 38880, while the sum is 35.

The square root of 5624639 is about 2371.6321384228. The cubic root of 5624639 is about 177.8408605846.

The spelling of 5624639 in words is "five million, six hundred twenty-four thousand, six hundred thirty-nine".