5591864 has 8 divisors (see below), whose sum is σ = 10484760. Its totient is φ = 2795928.

The previous prime is 5591863. The next prime is 5591881. The reversal of 5591864 is 4681955.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5591863) 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 as a sum of consecutive naturals, namely, 349484 + ... + 349499.

It is an arithmetic number, because the mean of its divisors is an integer number (1310595).

Almost surely, 2^5591864 is an apocalyptic number.

It is an amenable number.

5591864 is a deficient number, since it is larger than the sum of its proper divisors (4892896).

5591864 is a wasteful number, since it uses less digits than its factorization.

5591864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698989 (or 698985 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 5591864 is about 2364.7122446505. The cubic root of 5591864 is about 177.4947588216.

Subtracting from 5591864 its reverse (4681955), we obtain a palindrome (909909).

It can be divided in two parts, 55 and 91864, that added together give a palindrome (91919).

The spelling of 5591864 in words is "five million, five hundred ninety-one thousand, eight hundred sixty-four".