5437643 has 2 divisors, whose sum is σ = 5437644. Its totient is φ = 5437642.

The previous prime is 5437639. The next prime is 5437699. The reversal of 5437643 is 3467345.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5437643 - 2² = 5437639 is a prime.

It is a super-2 number, since 2×5437643² = 59135922790898, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (5437613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2718821 + 2718822.

It is an arithmetic number, because the mean of its divisors is an integer number (2718822).

Almost surely, 2^5437643 is an apocalyptic number.

5437643 is a deficient number, since it is larger than the sum of its proper divisors (1).

5437643 is an equidigital number, since it uses as much as digits as its factorization.

5437643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 32.

The square root of 5437643 is about 2331.8754254891. The cubic root of 5437643 is about 175.8477829044.

The spelling of 5437643 in words is "five million, four hundred thirty-seven thousand, six hundred forty-three".