5199643 has 2 divisors, whose sum is σ = 5199644. Its totient is φ = 5199642.

The previous prime is 5199641. The next prime is 5199697. The reversal of 5199643 is 3469915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5199643 - 2¹ = 5199641 is a prime.

Together with 5199641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5199641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2599821 + 2599822.

It is an arithmetic number, because the mean of its divisors is an integer number (2599822).

Almost surely, 2^5199643 is an apocalyptic number.

5199643 is a deficient number, since it is larger than the sum of its proper divisors (1).

5199643 is an equidigital number, since it uses as much as digits as its factorization.

5199643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 37.

The square root of 5199643 is about 2280.2725714265. The cubic root of 5199643 is about 173.2438562677.

The spelling of 5199643 in words is "five million, one hundred ninety-nine thousand, six hundred forty-three".