5591638 has 8 divisors (see below), whose sum is σ = 9032688. Its totient is φ = 2580744.

The previous prime is 5591617. The next prime is 5591653. The reversal of 5591638 is 8361955.

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

It is a junction number, because it is equal to n+sod(n) for n = 5591597 and 5591606.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 107506 + ... + 107557.

It is an arithmetic number, because the mean of its divisors is an integer number (1129086).

Almost surely, 2^5591638 is an apocalyptic number.

5591638 is a deficient number, since it is larger than the sum of its proper divisors (3441050).

5591638 is a wasteful number, since it uses less digits than its factorization.

5591638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215078.

The product of its digits is 32400, while the sum is 37.

The square root of 5591638 is about 2364.6644582266. The cubic root of 5591638 is about 177.4923675882.

It can be divided in two parts, 559 and 1638, that added together give a cube (2197 = 13³).

The spelling of 5591638 in words is "five million, five hundred ninety-one thousand, six hundred thirty-eight".