5418991 has 2 divisors, whose sum is σ = 5418992. Its totient is φ = 5418990.

The previous prime is 5418977. The next prime is 5419013. The reversal of 5418991 is 1998145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5418991 - 2¹³ = 5410799 is a prime.

It is a Chen prime.

5418991 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5418991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5418901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2709495 + 2709496.

It is an arithmetic number, because the mean of its divisors is an integer number (2709496).

Almost surely, 2^5418991 is an apocalyptic number.

5418991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5418991 is an equidigital number, since it uses as much as digits as its factorization.

5418991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 37.

The square root of 5418991 is about 2327.8726339729. The cubic root of 5418991 is about 175.6464904069.

The spelling of 5418991 in words is "five million, four hundred eighteen thousand, nine hundred ninety-one".