5590391 has 4 divisors (see below), whose sum is σ = 5726784. Its totient is φ = 5454000.

The previous prime is 5590381. The next prime is 5590421. The reversal of 5590391 is 1930955.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5590391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5590381) 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, 68135 + ... + 68216.

It is an arithmetic number, because the mean of its divisors is an integer number (1431696).

Almost surely, 2^5590391 is an apocalyptic number.

5590391 is a deficient number, since it is larger than the sum of its proper divisors (136393).

5590391 is a wasteful number, since it uses less digits than its factorization.

5590391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136392.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 5590391 is about 2364.4007697512. The cubic root of 5590391 is about 177.4791723231.

The spelling of 5590391 in words is "five million, five hundred ninety thousand, three hundred ninety-one".