5918791 has 4 divisors (see below), whose sum is σ = 5930632. Its totient is φ = 5906952.

The previous prime is 5918789. The next prime is 5918863. The reversal of 5918791 is 1978195.

It is a happy number.

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 5918791 - 2¹ = 5918789 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 (5918741) 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, 5136 + ... + 6181.

It is an arithmetic number, because the mean of its divisors is an integer number (1482658).

Almost surely, 2^5918791 is an apocalyptic number.

5918791 is a deficient number, since it is larger than the sum of its proper divisors (11841).

5918791 is a wasteful number, since it uses less digits than its factorization.

5918791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11840.

The product of its digits is 22680, while the sum is 40.

The square root of 5918791 is about 2432.8565514637. The cubic root of 5918791 is about 180.8885183898. Note that the first 3 decimals are identical.

The spelling of 5918791 in words is "five million, nine hundred eighteen thousand, seven hundred ninety-one".