5639667 has 8 divisors (see below), whose sum is σ = 8203200. Its totient is φ = 3417960.

The previous prime is 5639617. The next prime is 5639693. The reversal of 5639667 is 7669365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5639667 - 2⁸ = 5639411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5639617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85417 + ... + 85482.

It is an arithmetic number, because the mean of its divisors is an integer number (1025400).

Almost surely, 2^5639667 is an apocalyptic number.

5639667 is a deficient number, since it is larger than the sum of its proper divisors (2563533).

5639667 is a wasteful number, since it uses less digits than its factorization.

5639667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170913.

The product of its digits is 204120, while the sum is 42.

The square root of 5639667 is about 2374.7983072253. The cubic root of 5639667 is about 177.9991057481. Note that the first 3 decimals are identical.

The spelling of 5639667 in words is "five million, six hundred thirty-nine thousand, six hundred sixty-seven".