5642743 has 2 divisors, whose sum is σ = 5642744. Its totient is φ = 5642742.

The previous prime is 5642729. The next prime is 5642783. The reversal of 5642743 is 3472465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5642743 - 2⁵ = 5642711 is a prime.

5642743 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5642783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821371 + 2821372.

It is an arithmetic number, because the mean of its divisors is an integer number (2821372).

Almost surely, 2^5642743 is an apocalyptic number.

5642743 is a deficient number, since it is larger than the sum of its proper divisors (1).

5642743 is an equidigital number, since it uses as much as digits as its factorization.

5642743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 31.

The square root of 5642743 is about 2375.4458528874. The cubic root of 5642743 is about 178.0314614254.

The spelling of 5642743 in words is "five million, six hundred forty-two thousand, seven hundred forty-three".