40743863 has 2 divisors, whose sum is σ = 40743864. Its totient is φ = 40743862.

The previous prime is 40743853. The next prime is 40743893. The reversal of 40743863 is 36834704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40743863 - 2¹⁰ = 40742839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40743823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20371931 + 20371932.

It is an arithmetic number, because the mean of its divisors is an integer number (20371932).

Almost surely, 2^40743863 is an apocalyptic number.

40743863 is a deficient number, since it is larger than the sum of its proper divisors (1).

40743863 is an equidigital number, since it uses as much as digits as its factorization.

40743863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 40743863 is about 6383.0919623643. The cubic root of 40743863 is about 344.1021617201.

The spelling of 40743863 in words is "forty million, seven hundred forty-three thousand, eight hundred sixty-three".