5491847 has 2 divisors, whose sum is σ = 5491848. Its totient is φ = 5491846.

The previous prime is 5491841. The next prime is 5491859. The reversal of 5491847 is 7481945.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5491847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5491847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5491841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2745923 + 2745924.

It is an arithmetic number, because the mean of its divisors is an integer number (2745924).

Almost surely, 2^5491847 is an apocalyptic number.

5491847 is a deficient number, since it is larger than the sum of its proper divisors (1).

5491847 is an equidigital number, since it uses as much as digits as its factorization.

5491847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 5491847 is about 2343.4690098228. The cubic root of 5491847 is about 176.4301526331.

The spelling of 5491847 in words is "five million, four hundred ninety-one thousand, eight hundred forty-seven".