5981091 has 4 divisors (see below), whose sum is σ = 7974792. Its totient is φ = 3987392.

The previous prime is 5981077. The next prime is 5981099. The reversal of 5981091 is 1901895.

5981091 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 5981091 - 2¹⁵ = 5948323 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5981099) 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, 996846 + ... + 996851.

It is an arithmetic number, because the mean of its divisors is an integer number (1993698).

Almost surely, 2^5981091 is an apocalyptic number.

5981091 is a deficient number, since it is larger than the sum of its proper divisors (1993701).

5981091 is a wasteful number, since it uses less digits than its factorization.

5981091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993700.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 5981091 is about 2445.6269134927. The cubic root of 5981091 is about 181.5209698847.

The spelling of 5981091 in words is "five million, nine hundred eighty-one thousand, ninety-one".