5590991 has 4 divisors (see below), whose sum is σ = 6389712. Its totient is φ = 4792272.

The previous prime is 5590987. The next prime is 5591009. The reversal of 5590991 is 1990955.

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

It is a cyclic number.

It is not a de Polignac number, because 5590991 - 2² = 5590987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5590931) 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, 399350 + ... + 399363.

It is an arithmetic number, because the mean of its divisors is an integer number (1597428).

Almost surely, 2^5590991 is an apocalyptic number.

5590991 is a deficient number, since it is larger than the sum of its proper divisors (798721).

5590991 is an equidigital number, since it uses as much as digits as its factorization.

5590991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798720.

The product of its (nonzero) digits is 18225, while the sum is 38.

The square root of 5590991 is about 2364.5276483898. The cubic root of 5590991 is about 177.4855215328.

The spelling of 5590991 in words is "five million, five hundred ninety thousand, nine hundred ninety-one".