5591439 has 36 divisors (see below), whose sum is σ = 9721920. Its totient is φ = 3084480.

The previous prime is 5591437. The next prime is 5591459. The reversal of 5591439 is 9341955.

It is not a de Polignac number, because 5591439 - 2¹ = 5591437 is a prime.

It is an Ulam number.

Its product of digits (24300) is a multiple of the sum of its prime divisors (450).

5591439 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5591431) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13467 + ... + 13875.

Almost surely, 2^5591439 is an apocalyptic number.

5591439 is a deficient number, since it is larger than the sum of its proper divisors (4130481).

5591439 is a wasteful number, since it uses less digits than its factorization.

5591439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 450 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 5591439 is about 2364.6223800007. The cubic root of 5591439 is about 177.4902619798.

The spelling of 5591439 in words is "five million, five hundred ninety-one thousand, four hundred thirty-nine".